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Subject: Climate Change

1. Global Warming and Issues
2. All about Pollution

  • What is a ‘Bomb Cyclone’?

    bomb

    Bomb cyclone continued to unleash havoc as the death toll due to weather-related incidents in the United States mounted to 34 and has left millions without power.

    What is Bomb Cyclone?

    • A bomb cyclone is a large, intense mid-latitude storm that has low pressure at its center, weather fronts and an array of associated weather, from blizzards to severe thunderstorms to heavy precipitation.
    • It becomes a bomb when its central pressure decreases very quickly—by at least 24 millibars in 24 hours.
    • When a cyclone “bombs,” or undergoes bombogenesis, this tells us that it has access to the optimal ingredients for strengthening, such as high amounts of heat, moisture and rising air.

    Why is it called a bomb?

    • Most cyclones don’t intensify rapidly in this way.
    • Bomb cyclones put forecasters on high alert, because they can produce significant harmful impacts.

    Its etymology

    • The word “bombogenesis” is a combination of cyclogenesis, which describes the formation of a cyclone or storm, and bomb, which is, well, pretty self-explanatory.
    • This can happen when a cold air mass collides with a warm air mass, such as air over warm ocean waters.
    • The formation of this rapidly strengthening weather system is a process called bombogenesis, which creates what is known as a bomb cyclone.

    How does it occur?

    • Over the warmer ocean, heat and moisture are abundant.
    • But as cool continental air moves overhead and creates a large difference in temperature, the lower atmosphere becomes unstable and buoyant.
    • Air rises, cools and condenses, forming clouds and precipitation.

    Where does it occur the most?

    • The US coast is one of the regions where bombogenesis is most common.
    • That’s because storms in the mid-latitudes – a temperate zone north of the tropics that includes the entire continental US – draw their energy from large temperature contrasts.
    • Along the US East Coast during winter, there’s a naturally potent thermal contrast between the cool land and the warm Gulf Stream current.

     

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  • What is Greenwashing?

    greenwashing

    Reserve Bank Deputy Governor called for a taxonomy on green finance to avoid the risk of “greenwashing”.

    What is ‘Greenwashing’? 

    • Greenwashing refers to misleading the general public into believing that companies, sovereigns or civic administrators are doing more for the environment than they actually are.
    • This may involve making a product or policy seem more environmentally friendly or less damaging than it is in reality.
    • The term was coined by environmentalist Jay Westerveld in 1986.
    • The phenomenon came into practice as consumers and regulators increasingly sought to explore planet-friendly, recyclable and sustainable ‘green’ products.
    • By 2015, 66% of consumers were willing to shell out more for a product that was environmentally sustainable.

    How is it done? 

    • There is the indiscriminate use of the terms ‘net-zero’, ‘net-zero aligned’, ‘eco-friendly’, ‘green’ and ‘ecological’.
    • Since there is no compliance mechanism, such practices are rampant.

    Why does greenwashing happen? 

    • Greenwashing is done primarily for a company to either present itself as an ‘environment-friendly’ entity or for profit maximisation.
    • It is achieved by introducing a product, catering to the inherent demand for environment-friendly products.
    • In certain instances, it is done using the larger idea as a premise to cut down on certain operational logistics and providing consumer essentials.

    What does it have to do with the financial sector? 

    • Ethical investing: Sustainable investing has become increasingly popular among millennials and impact investors concerned with ‘ethical investing’.
    • Role of ESG credentials: Financial services providers expect increased scrutiny of a company’s Environmental, Social and Governance (ESG) credentials from regulators, shareholders, customers as well as other stakeholders.
    • Transition funding: Financial institutions are expected to fund the transition towards renewable energy and discourage investments in further harnessing of conventional energy sources as coal, oil and gas.

    Policy moves in India

    • If the financial sector is to respond effectively to the demand for products that endeavour to introduce positive changes into the economy, it is imperative that ‘greenwashing’ is averted.
    • In May this year, market regulator Securities and Exchange Board of India (SEBI) constituted an advisory committee to look into all ESG-related matters.

    Key recommendations

    • The expert committee recommends that financial institutions immediately discontinue all lending, underwriting and investments in companies wanting to strengthen or expand their coal-related infrastructure.
    • As for oil and gas, it recommends the discontinuation of all investments that would involve exploration of new oil and gas fields, expansion of existing reserves and further production.
    • Instead, companies should facilitate increased investment in renewable energy and institutions that are aligned to facilitate net zero emissions by 2050.

    Way forward

    • Companies must work towards reducing emissions across their entire value chain and not limit the endeavor to only one part of the chain.
    • They must not invest, through any means, in harnessing fossil fuels or engage in deforestation and other environmentally destructive activities.
    • In addition to this, companies cannot compensate for this investment by means of cheap credits, that “often lack integrity”.
    • Further, all state and non-state actors must ensure a ‘just transition’ such that livelihoods are not affected.
    • The committee also recommends a transition from voluntary disclosures (pertaining to net emissions) to regulatory norms.

     

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  • Mapping: Great Lakes

    lake

    Scientists are building a sensor network to detect the trends in the water chemistry of Lake Huron, one of the five Great Lakes of North America.

    What is the Acidification of water bodies?

    • Acidification of oceans or freshwater bodies takes place when excess carbon dioxide in the atmosphere gets rapidly absorbed into them.
    • Scientists initially believed this might be a good thing, as it leaves less carbon dioxide in the atmosphere.
    • But in the past decade or so, it has been established that absorption of carbon dioxide leads to a lowering of the pH, which makes the water bodies more acidic.

    What are Great Lakes?

    • The Great Lakes are a series of large interconnected freshwater lakes in the mid-east region of North America that connect to the Atlantic Ocean via the Saint Lawrence River.
    • There are five lakes, which are Superior, Michigan, Huron, Erie, and Ontario and are in general on or near the Canada–US border.
    • Hydrologically, lakes Michigan and Huron are a single body joined at the Straits of Mackinac.
    • By itself, Lake Huron is the world’s third largest freshwater lake, after Lake Superior and Lake Victoria.
    • The Great Lakes Waterway enables modern travel and shipping by water among the lakes.

    Why are they significant?

    • The Great Lakes contain a fifth of the world’s total freshwater, and is a crucial source of irrigation and transportation.
    • They also serve as the habitat for more than 3,500 species of plants and animals.

    Acidification of Great Lakes

    • Scientists are developing a system that would be capable of measuring the carbon dioxide and pH levels of the Great Lakes over several years.
    • It is known that the increase in atmospheric carbon dioxide has caused the world’s oceans to turn more acidic.
    • Recently, it has been observed that by 2100, even the Great Lakes — Superior, Michigan, Huron, Erie, and Ontario — might approach acidity at around the same rate as the oceans.
    • Researchers hope the data from the Lake Huron project would add to scientific information on the subject.

    Consequences of acidification

    • The Great Lakes are believed to have been born some 20,000 years ago, when the Earth started to warm and water from melting glaciers filled the basins on its surface.
    • However, this rich ecosphere is under threat as the five lakes would witness a pH decline of 0.29-0.49 pH units — meaning they would become more acidic — by 2100.
    • This may lead to a decrease in native biodiversity, create physiological challenges for organisms, and permanently alter the structure of the ecosystem, scientists say.
    • It would also severely impact the hundreds of wooden shipwrecks that are believed to be resting at the bottom of these lakes.

     

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  • What are Carbon Markets and how do they operate? 

    carbon

    The Parliament passed the Energy Conservation (Amendment) Bill, 2022. It amends the Energy Conservation Act, 2001, to empower the Government to establish carbon markets in India and specify a carbon credit trading scheme.

    A quick recap

    • In order to keep global warming within 2°C, ideally no more than 1.5°C, global greenhouse gas (GHG) emissions need to be reduced by 25 to 50% over this decade.
    • Nearly 170 countries have submitted their nationally determined contributions (NDCs) so far as part of the 2015 Paris Agreement, which they have agreed to update every five years.
    • NDCs are climate commitments by countries setting targets to achieve net-zero emissions.
    • India, for instance, is working on a long-term roadmap to achieve its target of net zero emissions by 2070.

    What are Carbon Markets?

    • In order to meet NDCs, one mitigation strategy is becoming popular with several countries— carbon markets.
    • Article 6 of the Paris Agreement provides for the use of international carbon markets by countries to fulfil their NDCs.
    • Carbon markets are essentially a tool for putting a price on carbon emissions— they establish trading systems where carbon credits or allowances can be bought and sold.
    • A carbon credit is a kind of tradable permit that, per United Nations standards, equals one tonne of carbon dioxide removed, reduced, or sequestered from the atmosphere.
    • Carbon allowances or caps, meanwhile, are determined by countries or governments according to their emission reduction targets.

    Popularity of the carbon markets

    • A UN Development Program release this year noted that interest in carbon markets is growing globally.
    • Almost 83% of NDCs submitted by countries mention their intent to make use of international market mechanisms to reduce greenhouse gas emissions.

    What are the types of carbon markets?

    There are broadly two types of carbon markets that exist today— compliance markets and voluntary markets.

    (A) Voluntary Markets

    • They are those in which emitters— corporations, private individuals, and others— buy carbon credits to offset the emission of one tonne of CO 2 or equivalent greenhouse gases.
    • Such carbon credits are created by activities which reduce CO 2 from the air, such as afforestation. In a voluntary market, a corporation looking to compensate for its unavoidable GHG emissions purchases carbon credits from an entity engaged in projects that reduce, remove, capture, or avoid emissions.
    • For Instance, in the aviation sector, airlines may purchase carbon credits to offset the carbon footprints of the flights they operate.
    • In voluntary markets, credits are verified by private firms as per popular standards.
    • There are also traders and online registries where climate projects are listed and certified credits can be bought.

    (B) Compliance Market

    • Compliance markets— set up by policies at the national, regional, and/or international level— are officially regulated.
    • Today, compliance markets mostly operate under a principle called ‘cap-and-trade”, most popular in the European Union (EU).

    Successful example of Carbon Market: EU’s emissions trading system (ETS)

    • Under the EU’s ETS launched in 2005, member countries set a cap or limit for emissions in different sectors, such as power, oil, manufacturing, agriculture, and waste management.
    • This cap is determined as per the climate targets of countries and is lowered successively to reduce emissions.
    • Entities in this sector are issued annual allowances or permits by governments equal to the emissions they can generate.
    • If companies produce emissions beyond the capped amount, they have to purchase additional permit, either through official auctions or from companies.
    • This makes up the ‘trade’ part of cap-and-trade.

    How is carbon price determined?

    • The market price of carbon gets determined by market forces when purchasers and sellers trade in emissions allowances.
    • Notably, companies can also save up excess permits to use later.
    • Through this kind of carbon trading, companies can decide if it is more cost-efficient to employ clean energy technologies or to purchase additional allowances.
    • These markets may promote the reduction of energy use and encourage the shift to cleaner fuels.

    Other such examples

    • China launched the world’s largest ETS in 2021, estimated to cover around one-seventh of the global carbon emissions from the burning of fossil fuels.
    • Markets also operate or are under development in North America, Australia, Japan, South Korea, Switzerland, and New Zealand.

    Significance of Carbon Market

    • The World Bank estimates that trading in carbon credits could reduce the cost of implementing NDCs by more than half — by as much as $250 billion by 2030.
    • Last year, the value of global markets for tradable carbon allowances or permits grew by 164% to a record 760 billion euros ($851 billion).
    • The EU’s ETS contributed the most to this increase, accounting for 90% of the global value at 683 billion euros.
    • As for voluntary carbon markets, their current global value is comparatively smaller at $2 billion.

    What is the progress at UN?

    • The UN international carbon market envisioned in Article 6 of the Paris Agreement is yet to kick off as multilateral discussions are still underway about how the inter-country carbon market will function.
    • Under the proposed market, countries would be able to offset their emissions by buying credits generated by greenhouse gas-reducing projects in other countries.
    • In the past, developing countries, particularly India, China and Brazil, gained significantly from a similar carbon market under the Clean Development Mechanism (CDM) of the Kyoto Protocol, 1997.
    • India registered 1,703 projects under the CDM which is the second highest in the world.
    • But with the 2015 Paris Agreement, the global scenario changed as even developing countries had to set emission reduction targets.

    India’s efforts

    The new Bill empowers the Centre to specify a carbon credits trading scheme.

    • Issuance of credit certificates: Under the Bill, the central government or an authorised agency will issue carbon credit certificates to companies or even individuals registered and compliant with the scheme.
    • Tradable carbon credits: These carbon credit certificates will be tradeable in nature. Other persons would be able to buy carbon credit certificates on a voluntary basis.

    Existing mechanisms

    • Notably, two types of tradeable certificates are already issued in India-
    1. Renewable Energy Certificates (RECs) and
    2. Energy Savings Certificates (ESCs)
    • These are issued when companies use renewable energy or save energy, which are also activities which reduce carbon emissions.

    Lacunas of the bill

    • No clear mechanism: The Bill does not provide clarity on the mechanism to be used for the trading of carbon credit certificates— whether it will be like the cap-and-trade schemes or use another method— and who will regulate such trading.
    • Confusion over nodal agency: The right ministry to bring in a scheme of this nature, pointing out that while carbon market schemes in other jurisdictions like the US, UK are framed by their environment ministries, the Indian Bill was tabled by the power ministry instead of the MoEFCC.
    • Ambiguity over existing certificates: The Bill does not specify whether certificates under already existing schemes would also be interchangeable with carbon credit certificates and tradeable for reducing carbon emissions.
    • Overlapping: The question, thus, is whether all these certificates could be exchanged with each other. There are concerns about whether overlapping schemes may dilute the overall impact of carbon trading.

    Challenges to carbon markets

    • Double counting: of greenhouse gas reductions
    • Quality and authenticity: These parameters of climate projects that generate credits to poor market transparency
    • Greenwashing: Companies may buy credits, simply offsetting carbon footprints instead of reducing their overall emissions or investing in clean technologies.
    • Inefficiency: The IMF points out that including high emission-generating sectors under trading schemes to offset their emissions by buying allowances may immensely increase emissions on net.

    Way forward

    • Alignment with NDCs: The UNDP emphasizes that for carbon markets to be successful, emission reductions and removals must be real and aligned with the country’s NDCs.
    • Transparent financing: It says that there must be “transparency in the institutional and financial infrastructure for carbon market transactions”.

     

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  • What are Western Disturbances?

    disturbance

    The days have been unusually warm for winter in New Delhi with the maximum temperature remaining above normal mostly on account of fewer western disturbances affecting this year.

    Western Disturbances

    • A western disturbance is an extratropical storm originating in the Mediterranean region that brings sudden winter rain to the northwestern parts of the Indian subcontinent.
    • They are labelled as an extra-tropical storm originating in the Mediterranean, is an area of low pressure that brings sudden showers, snow, and fog in northwest India.
    • In the term “extra-tropical storm”, storm refers to low pressure. “Extra-tropical” means outside the tropics. As the WD originates outside the tropical region, the word “extra-tropical” has been associated with them.
    • It is a non-monsoonal precipitation pattern driven by the westerlies.
    • The moisture in these storms usually originates over the Mediterranean Sea, the Caspian Sea and the Black Sea.
    • Extratropical storms are global phenomena with moisture usually carried in the upper atmosphere, unlike their tropical counterparts where the moisture is carried in the lower atmosphere.
    • In the case of the Indian subcontinent, moisture is sometimes shed as rain when the storm system encounters the Himalayas.
    • Western disturbances are more frequent and strong in the winter season.

    Impact: Winter Rainfall and Extreme Cold

    • Western disturbances, specifically the ones in winter, bring moderate to heavy rain in low-lying areas and heavy snow to mountainous areas of the Indian Subcontinent.
    • They are the cause of most winter and pre-monsoon season rainfall across northwest India.
    • An average of four to five western disturbances forms during the winter season.

    Its significance

    • Precipitation during the winter season has great importance in agriculture, particularly for the rabi crops.
    • Wheat among them is one of the most important crops, which helps to meet India’s food security.

    Try this PYQ:

    Consider the following statements:

    1. The winds which blow between 30°N and 60°S latitudes throughout the year are known as westerlies.
    2. The moist air masses that cause winter rains in the North-Western region of India are part of westerlies.

    Which of the statements given above is/are correct?

    (a) Only 1

    (b) Only 2

    (c) Both 1 and 2

    (d) Neither 1 nor 2

     

    [wpdiscuz-feedback id=”uouc14yg8a” question=”Please leave a feedback on this” opened=”1″]Post your answers here.[/wpdiscuz-feedback]

     

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  • ‘Loss and Damages’ Fund Launched at the onset of COP28

    loss and damage

    On the first day of the COP28 climate conference in Dubai, a fund dedicated to assisting vulnerable nations in dealing with the effects of climate change was formally inaugurated.

    Loss and Damage: The climate change context

    • Climate change causes costly damage, including from climate-related natural disasters, such as tropical cyclones, and more gradual changes, such as desertification and rising sea levels.
    • Currently, because climate change is caused by greenhouse gases already in the atmosphere, rich industrialised countries are responsible for most of the emissions causing these phenomena.

     ‘Loss and Damages’ Fund: Inception of the idea

    • The idea of a “loss and damage” fund (LDF) was first floated in 1991.
    • Vanuatu, a low-lying island nation in the Pacific, suggested the creation of an insurance scheme, under the auspices of the UN, to help pay for the consequences of rising sea levels.
    • For thirty years such demands were left ignored at the UN.
    • But twelve months ago in Scotland, that country’s first minister promised £2m ($2.4m) to the cause.

    Why need LDF?

    • Poor countries often feel the effects first being the most vulnerable and incapable of self-mitigation.
    • They also include not only economic damage to property but also loss of livelihoods, and the destruction of biodiversity and sites that have cultural importance.
    • This broadens the scope for affected nations to claim compensation.
    • Hence loss and damage is sometimes called the “third pillar” of climate politicking, after mitigation (tackling the root cause of the problem by reducing emissions) and adaptation (preparing for current and future impacts).

    Immediate triggers for such action

    Ans. Pakistan Floods

    • Unusually heavy monsoon rains caused more than $30bn of damage and financial losses in Pakistan, equivalent to nearly 9% of the country’s GDP.
    • Natural climatic variations, notably an ocean-cooling phenomenon known as “La Niña,” were partly responsible.
    • But the rains were also made heavier by the effects of greenhouse gases.

    When will LDF be operational?

    • Further decisions have been left to a “transitional committee” that will make recommendations to enable the actual adoption of the fund at the next year COP to be held in UAE.

    Realistic picture of LDF

    • Some critical questions remain unaddressed –
    1. Who will manage this fund?
    2. Whether contributions are expected from large developing countries?
    3. What the fair share of contributors will be?

    Status of global consensus over LDF

    • During COP27, financial pledges for LDF came from multiple countries, including Austria, Belgium, Canada, France, Germany, and New Zealand, joining Denmark and Scotland, which had made pledges previously.

    How much fund is necessary?

    • The expected monetary compensation from the L&D fund is estimated to be nearly $500 billion and rising by $200 billion annually.
    • A global transformation to a low-carbon economy is expected to require investments of at least $4-6 trillion a year.
    • The global stocktake refers to a five-year appraisal by countries of the impact of their actions to curb climate change.

    How realistic is the establishment of LDF?

    • To some extent, all this is immaterial.
    • Few believe that an UN-sponsored “loss and damage” fund will ever transfer the hundreds of billions that would be needed to offset the damage done by climate change.
    • COP27 itself dropped several hints that money for loss and damage could be found in what is called a “mosaic” of sources in existing global, regional and national financial institutions.

    Way forward

    • Mitigation, adaptation and loss and damage are inextricably linked.
    • Faster, more ambitious decarbonization will reduce the bill for adaptation.
    • Better mitigation and adaptation will mean that less money has to be spent rebuilding after disasters.

    Conclusion

    • LDF is largely a first concrete step towards the institutionalization of climate finance.
    • Delivering such funding will require a swift and comprehensive transformation of the financial system.
  • Climate Change and the role of Panchayat Raj Institutes (PRI’s)

    Panchayat

    Context

    • If India has to achieve the set of goals enunciated in the ‘Panchamrit’ resolution of the COP26 climate summit in Glasgow 2021, it is necessary that Panchayati raj institutions, the third tier of government which are closest to the people are involved.

    Climate change and rural area

    • Major impact on rural areas: The greater variability in rainfall and temperatures, etc. experienced of late has directly affected the livelihood and well-being of millions of rural households.
    • PRI excluded from National action plan: India’s National Action Plan on Climate Change 2008 identifies a range of priority areas for coordinated intervention at the national and State levels. However, there would have been better results had Panchayati raj institutions been given a greater role.
    • Decentralization of climate efforts are necessary: Through the ongoing decentralization process which ensures people’s participation, panchayats can play a crucial and frontline role in coordinating effective responses to climate risks, enabling adaptation and building climate-change resilient communities.

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    Panchayat

    What is carbon neutrality?

    • Zero carbon production:
    • The climate change discussion also focuses on the emerging and widely accepted concept of ‘carbon neutrality’ which puts forth the notion of zero carbon developments, nature conservation, food, energy and seeds sufficiency, and economic development.
    • As human activities are the cause of the current climate crisis, mitigating greenhouse gas emissions and adapting to growing and extreme weather events are critical.
    • Zero carbon development which promotes sustainable living is the effective solution to reducing anthropogenic emissions and improving climate resilience.

    Panchayat

    Efforts of Panchayat raj institutes to fight climate change: Case study of Meenangadi

    • Carbon neutral Meenangadi: In 2016, the panchayat envisaged a project called ‘Carbon neutral Meenangadi’, the aim being to transform Meenangadi into a state of carbon neutrality. There were campaigns, classes and studies to begin with. An awareness programme was conducted initially. A greenhouse gases emission inventory was also prepared. The panchayat was found to be carbon positive.
    • Implementation of Multi-sectoral schemes: An action plan was prepared by organising gram Sabha meetings. Socio-economic surveys and energy-use mapping were also carried out. Several multi sector schemes were implemented to reduce emissions, increase carbon sequestration, and preserve the ecology and bio-diversity.
    • Tree plantation Initiative: ‘Tree banking’ was one of landmark schemes introduced to aid carbon neutral activities which encouraged the planting of more trees by extending interest-free loans. Interestingly 1,58,816 trees were planted which have also been geo-tagged to monitor their growth.
    • People’s participation: The entire community was involved in the process, with school students, youth, and technical and academic institutions given different assignments. Five years have passed and the changes are visible. Local economic development was another thrust area where LED bulb manufacturing and related micro-enterprises were initiated.

    Panchayat

    Government of India’s effort to support climate change: ‘Clean and Green Village’

    • SDG theme: The Ministry of Panchayati Raj has focused its attention on localising the Sustainable Development Goals (SDGs) on a thematic basis.
    • Various activities delegated to PRI: ‘Clean and Green Village’ has been identified as the fifth theme where panchayats can take up activities on natural resource management, biodiversity protection, waste management and afforestation activities.
    • Documentation of best practices: According to the latest data, 1,09,135-gram panchayats have prioritised ‘Clean & Green Village’ as one of their focus areas for 2022-23. The Ministry has highlighted the need for the documentation of best practices and for wider dissemination.
    • Integrated panchayat development plan: The net result is that many panchayats are coming forward with their eco plans. The integrated Panchayat Development Plan prepared by all panchayats is a stepping stone towards addressing many of the environmental concerns of villages.

    Conclusion

    • In today’s age of rapid technological advancements and digital transformation, India’s rural local bodies are silently contributing their strength to ensuring the global target of carbon neutrality, as envisaged in the UN conference on climate change.

    Mains Question

    Q. What role PRIs can play in a fight against climate change? What is the scheme of “Clean and Green Village” of Ministry of Panchayat Raj?

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  • What is the Koronivia Joint Work on Agriculture (KJWA)?

    India has expressed its concern over the draft decision text to implement the Koronivia Joint Work on Agriculture.

    What is the news?

    • India said developed countries are blocking a pro-poor and pro-farmer decision by insisting on expanding the scope for mitigation to agriculture.
    • Developed countries are thereby compromising the very foundation of food security in the world.

    What is the Koronivia Joint Work?

    • The KJWA is a decision under the United Nations Framework Convention on Climate Change (UNFCCC).
    • It seeks to recognize the unique potential of agriculture in tackling climate change.
    • It emphasizes reducing emissions of greenhouse gases due to the agriculture sector.
    • The Koronivia decision addresses six interrelated topics on soils, nutrient use, water, livestock, methods for assessing adaptation, and the socio-economic and food security dimensions of climate change across the agricultural sectors.

    India’s arguments against Koronivia joint work

    • India said that agricultural emissions are not “luxury” emissions but “survival” emissions of the poor.
    • The world is facing a climate crisis today because of the excessive historic cumulative emissions by the developed nations.
    • These nations are unable to reduce their emissions domestically by any worthwhile change in their lifestyles.
    • Rather, they are searching for cheaper solutions abroad.
    • In most developing countries across the world, agriculture is done by small and marginal farmers who toil hard and brave the vagaries of extreme weather and climate variability to ensure food security.

    Back2Basics: Agricultural Emissions

    koronivia

    • Farms emitted 6 billion tonnes of GHGs in 2011, or about 13 percent of total global emissions.
    • That makes the agricultural sector the world’s second-largest emitter, after the energy sector (which includes emissions from power generation and transport).
    • Most farm-related emissions come in the form of methane (CH4) and nitrous oxide (N2O).
    • Cattle belching (CH4) and the addition of natural or synthetic fertilizers and wastes to soils (N2O) represent the largest sources, making up 65 percent of agricultural emissions globally.
    • Smaller sources include manure management, rice cultivation, field burning of crop residues, and fuel use on farms.

     

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  • Is climate change affecting global health?

    A recent report by Lancet, has traced in detail the intimate link between changing weather events and their impact on the health of people.

    What is the news?

    • The 2022 Lancet Countdown on Health and Climate Change: Health at the Mercy of Fossil Fuels points out that the world’s reliance on fossil fuels increases the risk of disease, food insecurity and other illnesses related to heat.

    Impact of climate change on health

     (1) Extreme Events

    • Heatwaves: The Lancet report indicates that rapidly increasing temperatures exposed vulnerable populations (adults above 65 years old and children younger than 1) to 3.7 billion more heatwave days in 2021 than annually in 1986–2005.
    • Shift in patterns: There is no doubt that events such as floods, droughts and recurrent cyclones are direct outcome of climate change.

    (2) Impact on health

    • Infectious diseases: The changing climate is affecting the spread of infectious disease, raising the risk of emerging diseases and co-epidemics. For instance, coastal waters are becoming more suited for the transmission of Vibrio pathogens.
    • More vector borne diseases: The number of months suitable for malaria transmission has increased in the highland areas of the Americas and Africa.
    • More lives loss: The WHO has predicted that between 2030 and 2050, climate change is expected to cause approximately 2,50,000 additional deaths per year, from malnutrition, malaria, diarrhoea and heat stress.
    • Others: Low air quality, Rise in zoonotic diseases.

    (3) Food security

    • Crop loss: Higher temperatures threaten crop yields directly, with the growth season shortening for many cereal crops.
    • Supply chain disruptions: Extreme weather events disrupt supply chains, thereby undermining food availability, access, stability, and utilisation.
    • Malnutrition: The prevalence of undernourishment increased during the COVID-19 pandemic, and up to 161 million more people faced hunger in 2020 than in 2019.

    Way forward

    • Health-centred response: A health-centred response to the coexisting climate, energy, and cost-of-living crises provides an opportunity to deliver a healthy, low-carbon future.
    • Realization of the problem: The governments’ commitment to assess and address the threats from climate change, are positive signs, the report stresses.
    • Holistic approach: This is the way a health-centred response would work – it would reduce the likelihood of the most catastrophic climate change impacts, while improving energy security and creating an opportunity for economic recovery.
    • Shift in dietary patterns: The report also calls for an accelerated transition to balanced and more plant-based diets, as that would help reduce emissions from red meat and milk production, and prevent diet-related deaths.
    • Easing the healthcare: The report emphasizes reducing the strain on health-care providers, and leading to more robust health systems.

     

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  • MARS A new alert system to detect Methane emissions

    MARS

    Context

    • A new satellite-based system will now help governments detect methane emissions and tackle them. The Methane Alert and Response System (MARS) was launched at the 27th Conference of Parties (COP27) to the United Nations Framework Convention on Climate Change in Sharm El-Sheikh, Egypt.

    What is Methane Alert and Response System (MARS)?

    • MARS is a part of global efforts to slow climate change by tracking the global warming gas.
    • The system will be the first publicly available global system to connect methane detection to notification processes transparently.
    • The data-to-action platform was set up as part of the UN Environment Programme’s (UNEP) International Methane Emissions Observatory (IMEO) strategy to get policy-relevant data into the right hands for emissions mitigation.

    MARS

    How the “MARS” will work?

    • The Methane Alert and Response System, or MARS, will integrate data from a large number of existing and future satellites to identify significant methane emission events anywhere in the world.
    • It will send out notifications to the relevant stakeholders and support and track mitigation progress.
    • According to the UN statement MARS will track the large point emission sources, mainly in the fossil fuel industry, but with time, would be able to detect emissions from coal, waste, livestock and rice fields as well.
    • UNEP will continue to monitor the event location and make the data and analysis available to the public between 45 and 75 days after detection.

    MARS

    Methane a dangerous greenhouse gas

    • A major greenhouse gas: Methane is the second-most common of the six major greenhouse gases, but is far more dangerous than carbon dioxide in its potential to cause global warming.
    • One of major contributor of GHG emissions: Contribution Accounting for about 17 per cent of the current global greenhouse gas emissions.
    • One of the key reasons behind Temperature rise: Methane is blamed for having caused at least 25 to 30 per cent of temperature rise since the pre-industrial times.
    • Methane largely a Sectoral gas: Unlike carbon dioxide, methane is largely a sectoral gas, and there are only a few sources of emission.
    • Few sources large emissions of methane: The global warming potential of methane is about 80 times that of carbon dioxide. It accounts for a small portion of human-induced greenhouse gas emissions compared to carbon dioxide.

    MARS

    Why such alert system is necessary?

    • To achieve the target set by Global methane pledge: At the Glasgow climate conference last year, nearly 100 countries had come together in a voluntary pledge the Global Methane Pledge to cut methane emissions by at least 30 per cent by 2030 from the 2020 levels. More countries have joined in this initiative since then, bringing the total to nearly 130.
    • To keep the temperature, rise below 5-degree Celsius: A 30 per cent reduction in methane emissions by 2030 is expected to result in avoiding 0.2 degree rise in temperature by the year 2050, and is considered absolutely essential in the global efforts to keep the temperature increase below the 1.5-degree Celsius target. This is a global, not a national reduction target.
    • Reducing methane emissions from the atmosphere provides multiple benefits: Methane being a sectoral gas with few sources of emission, it is possible to cut down on methane emissions without having widespread impact on the economy, a reduction in methane emissions brings big benefits in a short time.
    • MARS Provides technical and advisory to the partners: If requested, MARS partners will also provide technical or advisory services, such as help in assessing mitigation opportunities

    All you need to know about Conference of Parties (COP).

    • Unless the parties decide otherwise, every year The United Nations Framework Convention on Climate Change (UNFCCC) convenes what is called a Conference of Parties (COP), a meeting that brings together leaders and delegates from around the world to strengthen their commitments and actions against specific climate change goals.
    • The parties are the 198 countries that ratified the UNFCCC.
    • The UNFCCC is an international treaty focused on preventing dangerous human interference with the climate system, primarily by stabilizing greenhouse gas (GHG) emissions.

    Conclusion

    • Cutting methane is the fastest opportunity to reduce warming and keep 1.5°C within reach, and this MARS a new alert and response system is going to be a critical tool for helping all of us deliver on the Global Methane Pledge.

    Mains Question

    Q. Methane is thought to be 80 times more efficient than carbon dioxide at trapping atmospheric heat in the 20 years following its release. Discuss how MARS a new alert system would be helpful to keep the temperature rise below 1.5 degree Celsius?

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