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GS Paper: GS1-14.Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc.,

  • [pib] BASIC Countries

    The Union Environment Minister has delivered the statement on behalf of the BASIC group of countries at the UN Climate Change Conference underway at Glasgow.

    Who are the BASIC Countries?

    • The BASIC countries (also Basic countries or BASIC) are a bloc of four large newly industrialized countries – Brazil, South Africa, India and China.
    • It was formed by an agreement on 28 November 2009.
    • The four committed to act jointly at the Copenhagen climate summit, including a possible united walk-out if their common minimum position was not met by the developed nations.
    • This emerging geopolitical alliance, initiated and led by China, then brokered the final Copenhagen Accord with the United States.

    What is the Copenhagen Accord?

    • The Copenhagen Accord is a document signed at COP 15 to the UNFCCC on 18 December 2009.
    • The Accord states that global warming should be limited to below 2.0 °C (3.6 °F).
    • It does not specify what the baseline is for these temperature targets (e.g., relative to pre-industrial or 1990 temperatures).
    • In January 2010, the Accord was described merely as a political agreement and not legally binding, as is argued by the US and Europe.
    • It is not legally binding and does not commit countries to agree to a binding successor to the Kyoto Protocol, whose round ended in 2012.
    • According to the UNFCCC, these targets are relative to pre-industrial temperatures.

     

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  • What is Climate Vulnerability Index?

    Environmental think tank Council on Energy, Environment and Water has carried a first-of-its-kind district-level climate vulnerability assessment, or Climate Vulnerability Index (CVI).

    Climate Vulnerability Index

    • The Index takes into account certain indicators when assessing the preparedness of a state or district.
    • It considers:
    1. Exposure (that is whether the district is prone to extreme weather events)
    2. Sensitivity (the likelihood of an impact on the district by the weather event)
    3. Adaptive capacity (what the response or coping mechanism of the district is)

    Significance of CVI

    • CVI helps map critical vulnerabilities and plan strategies to enhance resilience and adapt by climate-proofing communities, economies and infrastructure.
    • Instead of looking at climate extremes in isolation, the study looks at the combined risk of hydro-met disasters, which is floods, cyclones and droughts, and their impact.
    • The study does not take into consideration other natural disasters such as earthquakes.

    Why does India need a climate vulnerability index?

    • According to Germanwatch’s 2020 findings, India is the seventh-most vulnerable country with respect to climate extremes.
    • Extreme weather events have been increasing in the country such as supercyclone Amphan in the Bay of Bengal, which is now the strongest cyclone to be recorded in the country.
    • Recent events such as the landslides and floods in Uttarakhand and Kerala, have also increased in the past decade.
    • Further, the IPCC states that every degree rise in temperature will lead to a three per cent increase in precipitation, causing increased intensification of cyclones and floods.

    Key findings of the CVI

    According to CVI, Assam, Andhra Pradesh, Maharashtra, Karnataka and Bihar are most vulnerable to extreme climate events such as floods, droughts and cyclones in India.

    • 183 hotspot districts are highly vulnerable to more than one extreme climate events
    • 60% of Indian districts have medium to low adaptive capacity in handing extreme weather events – these districts don’t have robust plans in place to mitigate impact
    • North-eastern states are more vulnerable to floods
    • South and central are most vulnerable to extreme droughts
    • 59 and 41 per cent of the total districts in the eastern and western states, respectively, are highly vulnerable to extreme cyclones.

    Best performing states

    • Kerala and West Bengal have performed well comparatively, despite both being coastal states and dealing with the threat of cyclones and floods annually.
    • The reason why these states have performed better is that they have stepped up their climate action plans as well as preparedness to handle an extreme weather event.

    Key recommendations

    • Develop a high-resolution Climate Risk Atlas (CRA) to map critical vulnerabilities
    • Establish a centralised climate-risk commission to coordinate the environmental de-risking mission.
    • Undertake climate-sensitivity-led landscape restoration focused on rehabilitating, restoring, and reintegrating natural ecosystems as part of the developmental process.
    • Integrate climate risk profiling with infrastructure planning to increase adaptive capacity.
    • Provide for climate risk-interlinked adaptation financing by creating innovative CVI-based financing instruments that integrate climate risks for an effective risk transfer mechanism.

     

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  • Sundarbans among 5 sites with highest ‘Blue Carbon’ globally

    India’s Sundarbans National Park is among five sites that have the highest blue carbon stocks globally, according to a new assessment.

    Highlights of the study

    • ‘World Heritage forests’ are now releasing more carbon than they are absorbing, primarily due to human activity and climate change, according to the assessment.
    • UNESCO lists 50 sites across the globe for their unique marine values. These represent just one per cent of the global ocean area.
    • But they comprise at least 15 per cent of global blue carbon assests.

    Try this question from CSP 2021:

    Q. What is blue carbon?

    (a) Carbon captured by oceans and coastal ecosystems

    (b) Carbon sequestered in forest biomass and agricultural soils

    (c) Carbon contained in petroleum and natural gas

    (d) Carbon present in atmosphere

     

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    Carbon capacity of Sundarbans

    • The Sundarbans National Park has stores of 60 million tonnes of carbon (Mt C).
    • The other four sites besides the Sundarbans National Park in India are:
    1. Bangladeshi portion of the Sundarbans (110 Mt C)
    2. Great Barrier Reef in Australia (502 Mt C)
    3. Everglades National Park in the US (400 Mt C) and
    4. Banc d’Arguin National Park in Mauritania (110 Mt C)

    About Sundarbans

    • Sundarbans is the largest delta and mangrove forest in the world.
    • The Indian Sunderbans, which covers 4,200 sq km, comprises of the Sunderban Tiger Reserve of 2,585 sq km is home to about 96 Royal Bengal Tigers (2020) is also a world heritage site and a Ramsar Site.
    • The Indian Sunderbans is bound on the west by river Muriganga and on the east by rivers Harinbhahga and Raimangal.
    • Other major rivers flowing through this eco-system are Saptamukhi, Thakuran, Matla and Goasaba.

    Worrying scenario

    • The researchers found that 10 of 257 forests emitted more carbon than they captured between 2001 and 2020.
    • The reasons for included clearance of land for agriculture, the increasing scale and severity of wildfires due to drought as well as extreme weather phenomena.
    • The 10 sites are:
    1. Tropical Rainforest Heritage of Sumatra (Indonesia)
    2. Río Plátano Biosphere Reserve (Honduras)
    3. Yosemite National Park (US)
    4. Waterton Glacier International Peace Park (Canada, US)
    5. Barberton Makhonjwa Mountains (South Africa)
    6. Kinabalu Park (Malaysia)
    7. Uvs Nuur Basin (Russian Federation, Mongolia)
    8. Grand Canyon National Park (US)
    9. Greater Blue Mountains Area (Australia)
    10. Morne Trois Pitons National Park (Dominica)

    (Try mapping these sites)

    Back2Basics: Types of Carbon

    • Brown Carbon: It is brown smoke released by the combustion of organic matter.
    • Black Carbon: It is also a greenhouse gas and causes more pollution than Brown Carbon. The particles leftover from incomplete combustion of fossil fuels (soot and dust). It has a greater effect on radiation transmission.
    • Green Carbon: Carbon incorporated into plant biomass and the soils below. Green carbon is carbon removed by photosynthesis and stored in the plants and soil of natural ecosystems.
    • Blue Carbon: Blue Carbon refers to coastal, aquatic and marine carbon sinks held by the indicative vegetation, marine organism and sediments.

     

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  • COP26 Climate Conference and Why it is important

    The UK will host the COP 26 UN Climate Change Conference from October 31 to November 12.

    Conference of Parties (CoP): A Backgrounder

    • The CoP comes under the United Nations Climate Change Framework Convention (UNFCCC) which was formed in 1994.
    • The UNFCCC was established to work towards “stabilisation of greenhouse gas concentrations in the atmosphere.”
    • It laid out a list of responsibilities for the member states which included:
    1. Formulating measures to mitigate climate change
    2. Cooperating in preparing for adaptation to the impact of climate change
    3. Promoting education, training and public awareness related to climate change
    • The UNFCCC has 198 parties including India, China and the USA. COP members have been meeting every year since 1995.

    COP1 to COP25: Key takeaways

    COP1: The first conference was held in 1995 in Berlin.

    COP3: It was held in Kyoto, Japan, in 1997, the famous Kyoto Protocol (w.e.f. 2005) was adopted. It commits the member states to pursue limitation or reduction of greenhouse gas emissions.

    COP8: India hosted the eighth COP in 2002 in New Delhi. It laid out several measures including, ‘strengthening of technology transfer… in all relevant sectors, including energy, transport and R&D,  and the strengthening of institutions for sustainable development.

    COP21: it is one of the most important that took place in 2015, in Paris, France. Here countries agreed to work together to ‘limit global warming to well below 2, preferably at 1.5 degrees Celsius, compared to pre-industrial levels.’

    Significance of COP26

    • The event will see leaders from more than 190 countries, thousands of negotiators, researchers and citizens coming together to strengthen a global response to the threat of climate change.
    • It is a pivotal movement for the world to come together and accelerate the climate action plan after the COVID pandemic.

    COP26 goals

    According to the UNFCCC, COP26 will work towards four goals:

    1. Secure global net-zero by mid-century and keep 1.5 degrees within reach
    • The UNFCCC recommends that countries ‘accelerate the phase-out of coal, curtail deforestation, speed up the switch to electric vehicles and encourage investment in renewables’ to meet this goal.
    1. Adapt to protect communities and natural habitats
    • Countries will work together to ‘protect and restore ecosystems and build defences, warning systems and resilient infrastructure and agriculture to avoid loss of homes, livelihoods and even lives.’
    1. Mobilise finance
    • To deliver on first two goals, developed countries must make good on their promise to mobilise at least $100bn in climate finance per year by 2020.
    1. Work together to deliver
    • Another important task at the COP26 is to ‘finalise the Paris Rulebook’. Leaders will work together to frame a list of detailed rules that will help fulfil the Paris Agreement.

    What India could do to reach its targets?

    • Update NDCs: It is time for India to update its Nationally Determined Contributions or NDCs. (NDCs detail the various efforts taken by each country to reduce the national emissions)
    • Effective planning: Sector by sector plans are needed to bring about development. We need to decarbonise the electricity, transport sector and start looking at carbon per passenger mile.
    • Energy transition: Aggressively figure out how to transition our coal sector
    • Robust legal framework: India also needs to ramp up the legal and institutional framework of climate change.

    Try answering this PYQ:

    With reference to the Agreement at the UNFCCC Meeting in Paris in 2015, which of the following statements is/are correct?

    1. The Agreement was signed by all the member countries of the UN and it will go into effect in 2017.
    2. The Agreement aims to limit the greenhouse gas emissions so that the rise in average global temperature by the end of this century does not exceed 2 degree Centigrade or even 5 degree Centigrade above pre-industrial levels.
    3. Developed countries acknowledged their historical responsibility in global warming and committed to donate dollar 1000 billion a year from 2020 to help developing countries to cope with climate change.

    Select the correct answer using the code given below:

    (a) 1 and 3 only

    (b) 2 only

    (c) 2 and 3 only

    (d) 1, 2 and 3

     

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  • India joins High Ambition Coalition (HAC)

    India has officially joined the High Ambition Coalition for Nature and People, a group of more than 70 countries encouraging the adoption of the global goal to protect 30×30.

    High Ambition Coalition (HAC)

    Aim: To promote an international agreement to protect at least 30 % the of world’s land and ocean by 2030

    • The HAC is an informal group of approximately 61 countries within the UN Framework Convention on Climate Change (UNFCCC).
    • It is committed to advancing progressive proposals on climate ambition.
    • The HAC was founded by the Republic of the Marshall Islands in 2014 with the aim of ensuring the Paris Agreement, adopted in 2015, was as ambitious as possible.
    • The Republic of the Marshall Islands serves as the convener and secretariat of the HAC.
    • The global 30×30 goal is currently a centerpiece of the treaty.

    Members

    • HAC members currently include a mix of countries in the global north and south; European, Latin American, Africa and Asia countries are among the members.
    • India is the first of the BRICS bloc of major emerging economies (Brazil, Russia, India, China and South Africa) to join the HAC.

     

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  • First Nobel for Climate Science

    Three scientists received the Nobel Prize in Physics for work that is essential to understanding how the Earth’s climate is changing, pinpointing the effect of human behaviour on those changes and ultimately predicting the impact of global warming.

    Who are the laureates?

    • The winners were Syukuro Manabe, Klaus Hasselmann of Germany, and Giorgio Parisi from Italy.
    • In 2015, at a UK-based climate-focused online publication sought to identify the three most influential climate change research papers ever published.
    • The paper that received the most votes was one by Syukuro Manabe and Richard Wetherald way back in 1967.
    • These reports for the first time, had described the impact of carbon dioxide and water vapour on global warming.

    Citation for their Climate Model

    • Manabe is a senior meteorologist and climatologist at Princeton University.
    • In the 1960s, he led ground-breaking research into how increased levels of carbon dioxide lead to higher temperatures on the surface of the Earth.
    • This laid the foundation for the development of current climate models.
    • Hasselmann is a German physicist and oceanographer who greatly advanced public understanding of climate change through the creation of a model that links climate and chaotic weather systems.
    • Parisi has focused on quantum field theory and complex systems.

    Why it is significant feat?

    • This is the first-time climate scientists have been awarded the Physics Nobel.
    • The IPCC had won the Peace Nobel in 2007, an acknowledgement of its efforts in creating awareness for the fight against climate change.
    • A Chemistry Nobel was also awarded to Paul Crutzen in 1995, for his work on the ozone layer, is considered the only other time someone from atmospheric sciences has won this honour.
    • The recognition of Manabe and Hasselmann, therefore, is being seen as an acknowledgement of the importance that climate science holds in today’s world.

     

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  • Arctic ice is disappearing: How clouds interact with sea ice change

    Temperatures in the Arctic, for example, have been rising much faster than the rest of the planet. Experts, for the longest time, have attributed the crisis to how clouds interact with sea ice, essentially frozen seawater.

    Role of Polynya

    • Decades of research have pointed that the losses in Arctic Sea ice cover allow for the formation of more clouds near the ocean’s surface.
    • New research by NASA has now shown that more heat and moisture is released through a large hole in sea ice called a polynya, which fuels the formation of more clouds.
    • This traps heat in the atmosphere and hinders the refreezing of new sea ice.

    What is Polynya?

    • A polynya is an area of open water surrounded by sea ice.
    • It is now used as a geographical term for an area of unfrozen seawater within otherwise contiguous pack ice or fast ice.
    • It refers to a natural ice hole and was adopted in the 19th century by polar explorers to describe navigable portions of the sea.
    • There are two main types of polynyas:
    1. Coastal polynyas, which can be found year-round near the Antarctic and Arctic coasts and are mainly created by strong winds pushing the ice away from the coast, and
    2. Mid-sea or open-ocean polynyas, which may be found more sporadically in the middle of an ice pack in certain locations, especially around Antarctica.

    What is the new research about?

    • The research stated that low clouds over the polynya emitted more energy or heat than clouds in adjacent areas covered by sea ice.
    • The polynya did refreeze, but only after the increased cloud cover and heat under the clouds persisted for about a week.
    • The extra clouds and increased cloud radiative effect to the surface remained for some time after the polynya froze.
    • The sea ice acts like a cap or a barrier between the relatively warm ocean surface and the cold and dry atmosphere above, so more heat and moisture from the ocean into the atmosphere.
    • This warming slows down the growth of the sea ice.

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  • A climate change narrative that India can steer

    A recent report by the Ministry of Earth Sciences (MoES) reveals that India has warmed up 0.7° C during 1901-2018.

    What was the report?

    Title: Assessment of Climate Change over the Indian Region (by MoES)

    (a) Climate severity

    • The 2010-2019 decade was the hottest with a mean temperature of 0.36° C higher than average.
    • Heatwaves continued to increase with no signs of diminishing greenhouse gas emissions despite lower activity since the novel coronavirus pandemic.
    • India may experience a 4.4° C rise by the end of this century.
    • Within 2050, rainfall is expected to rise by 6% and temperature by 1.6° C.
    • India’s Deccan plateau has seen eight out of 17 severe droughts since 1876 in the 21st century (2000-2003; 2015-2018).

    (b) Land degradation

    • To make things worse, India lost about 235 square kilometres to coastal erosion due to climate change-induced sea-level rise, land erosion and natural disasters such as tropical cyclones between 1990-2016.

    (c) Rising Internal Displacement

    • According to the Internal Displacement Monitoring Centre, India’s Internally Displaced Populations (IDPs) are rising due to damaging climate events.
    • Uttarakhand residents began deserting their homes after the Kedarnath floods in 2013 due to heavy precipitation that increases every year.
    • Recent figures are more alarming with 3.9 million displaced in 2020 alone, mostly due to Cyclone Amphan.

    India’s commitment to Climate Mitigation

    • India held the top 10 position for the second year in a row in 2020’s Climate Change Performance Index (CCPI).
    • The country received credit under all of the CCPI’s performance fields except renewable energy where India performed medium.
    • India vowed to work with COP21 by signing the Paris Agreement to limit global warming and submitted the Nationally Determined Contributions (NDCs).
    • It set a goal of reducing emissions intensity of GDP by 33%-35% and increasing green energy resources (non-fossil-oil based) to 40% of installed electric power capacity by 2030.
    • India cofounded with France at COP21, in 2015, the International Solar Alliance (ISA).

    Core concern

    (a) Good policies, weak practices

    • The question is, are these global alliances and world-leading policies being practised or are merely big promises with little implementation?
    • Despite leading ISA, India performed the least in renewable energy according to the CCPI’s performance of India.

    (b) Low compliance

    • India is not fully compliant with the Paris Agreement’s long-term temperature goal of the NDCs and there are still risks of falling short of the 2° C goal.
    • According to India’s carbon emission trajectory, the country is en route to achieve barely half of the pledged carbon sink by 2030.
    • To achieve the Paris Agreement’s NDC target, India needs to produce 25 million-30 million hectares of forest cover by 2030 — a third of current Indian forestation and trees.
    • Going by the facts, it seems India has overpromised on policies and goals as it becomes difficult to deliver on the same.

    Why COP26 matters

    • The Glasgow COP26 offers India a great opportunity to reflect on the years since the Paris Agreement and update NDCs to successfully meet the set targets.
    • India is expected to be the most populated country by 2027, overtaking China, contributing significantly to the global climate through its consumption pattern.
    • India is in a rather unique position to have a significant influence on global climate impact in the new decade.

    Conclusion

    • India believes that climate actions must be nationally determined.
    • However, the Paris Agreement for developing countries should be at the core of decision-making.
    • India has the ability to improve its global positioning by leading a favourable climate goal aspiration for the world to follow.
    • The country has the opportunity to not only save itself from further climate disasters but also be a leader in the path to climate change prevention.

    Back2Basics: COP26, Glasgow

    • The 2021 United Nations Climate Change Conference, also known as COP26, is the 26th United Nations Climate Change conference.
    • It is scheduled to be held in the city of Glasgow, Scotland between 31 October and 12 November 2021, under the presidency of the United Kingdom.
    • This conference is the first time that Parties are expected to commit to enhanced ambition since COP21.
    • Parties are required to carry out every five years, as outlined in the Paris Agreement, a process colloquially known as the ‘ratchet mechanism’.

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  • Thawing Permafrost

    The latest IPCC report has warned that increasing global warming will result in reductions in Arctic permafrost and the thawing of the ground is expected to release greenhouse gases like methane and carbon dioxide.

    What is Permafrost?

    • ‘Permafrost’ or permanently frozen ground is land that has been frozen at or below 0 degrees Celsius for two or more consecutive years.
    • A staggering 17 per cent of Earth’s entire exposed land surface is comprised of permafrost.
    • Composed of rock, sediments, dead plant and animal matter, soil, and varying degrees of ice, permafrost is mainly found near the poles, covering parts of Greenland, Alaska, Northern Canada, Siberia and Scandinavia.
    • The Arctic region is a vast ocean, covered by thick ice on the surface (called sea ice), surrounded by land masses that are also covered with snow and ice.

    Permafrost thawing

    • When permafrost thaws, water from the melted ice makes its way to the caves along with ground sediments, and deposits on the rocks.
    • In other words, when permafrost thaws, the rocks grow and when permafrost is stable and frozen, they do not grow.

    Why thawing?

    • The link between the Siberian permafrost and Arctic sea ice can be explained by two factors:
    • One is heat transport from the open Arctic Ocean into Siberia, making the Siberian climate warmer.
    • The second is moisture transport from open seawater into Siberia, leading to thicker snow cover that insulates the ground from cold winter air, contributing to its warming.
    • This is drastically different from the situation just a couple of decades ago when the sea ice acted as a protective layer, maintaining cold temperatures in the region and shielding the permafrost from the moisture from the ocean.
    • If sea ice (in the summer) is gone, permafrost start thawing.

    Impact on Climate Change

    • Due to relentlessly rising temperatures in the region, since the late-twentieth century, the Arctic sea ice and surrounding land ice are melting at accelerating rates.
    • When permafrost thaws due to rising temperatures, the microbes in the soil decompose the dead organic matter (plants and animals) to produce methane (CH4) and carbon dioxide (CO2), both potent greenhouse gases.
    • CH4 is at least 80 times more powerful than CO2 on a decadal timescale and around 25 times more powerful on a century timescale.
    • The greenhouse gases produced from thawing permafrost will further increase temperatures which will, in turn, lead to more permafrost thawing, forming an unstoppable and irreversible self-reinforcing feedback loop.
    • Experts believe this process may have already begun. Giant craters and ponds of water (called ‘thermokarst lakes’) formed due to thawing have been recorded in the Arctic region. Some are so big that they can be seen from space.

    Why a matter of concern?

    • An estimated 1,700 billion tonnes — twice the amount currently present in the atmosphere — of carbon is locked in all of the world’s permafrost.
    • Even if half of that were to be released to the atmosphere, it would be game over for the climate.
    • Scientific estimates suggest that the Arctic Ocean could be largely sea ice-free in the summer months by as early as 2030, based on observational trends, or as late as 2050, based on climate model projections.

    Potential to cause another pandemic

    Ans. Permafrost has many secrets.

    • When the permafrost was formed thousands of years ago, there weren’t many humans who lived in that region which was necessarily very cold.
    • Researchers recently found mammoths in the permafrost in Russia.
    • And some of these mammoth carcasses when they begin to degrade again may reveal bacteria that were frozen thousands of years ago.
    • So there will be surprises. But whether they will be lethal surprises is just not possible to say.

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  • Climate Action and Finance Mobilization Dialogue (CAFMD)

    India and the US has together launched the “Climate Action and Finance Mobilization Dialogue (CAFMD)”.

    What is CAFMD?

    • The CAFMD is one of the two tracks of the India-U.S. Climate and Clean Energy Agenda 2030 partnership launched at the Leaders’ Summit on Climate in April 2021, by PM Modi and US President Mr. Biden.
    • The dialogue will strengthen India-US bilateral cooperation on climate and environment.
    • It will also help to demonstrate how the world can align swift climate action with inclusive and resilient economic development, taking into account national circumstances and sustainable development priorities.

    Key agendas

    • The US will collaborate with India to work towards installing 450 GW of renewable energy by 2030.
    • Currently, India’s installed power capacity is projected to be 476 GW by 2021-22 and is expected to rise to at least 817 GW by 2030.

    CAFMD would have three pillars:

    1. Climate Action Pillar: which would have joint proposals looking at ways in emissions could be reduced in the next decade.
    2. Setting out a Roadmap: to achieving the 450GW in transportation, buildings and industry.
    3. Finance Pillar: would involve collaborating on attracting finance to deploy 450 GW of renewable energy and demonstrate at scale clean energy technologies.

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