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

  • Self-pollination in Field Pansy Flower  

    Field Pansy Flower

    Central Idea

    • Researchers have found that a flower species in Paris, the field pansy (Viola arvensis), is evolving rapidly, exhibiting reduced nectar production and smaller flower sizes.
    • This study aims to understand the impact of these evolutionary changes on plant-pollinator interactions.

    Changing Nature of Field Pansy

    • Decreased Nectar and Size: The wild pansy variety in Paris showed a 20% reduction in nectar production and a 10% decrease in flower size.
    • Comparative Analysis: Scientists compared current flower growth with seeds from 20-30 years ago, observing notable changes.
    • Adaptation to Pollinator Decline: The evolution towards self-pollination in field pansies is attributed to the decreasing availability of insect pollinators.
    • Experimental Design: The study employed the “resurrection ecology” method, planting seeds from the 1990s and 2000s alongside their 2021 descendants.

    Implications of Self-Pollination and Evolutionary Shifts

    • Contrast with Angiosperm Convention: The move towards self-pollination deviates from the typical reliance of angiosperms on insects for pollination.
    • Long-Term Coevolution: The traditional plant-insect relationship, involving nectar production for pollination, has evolved over 100 million years.
    • Genetic Analysis: Population genetics analysis revealed a 27% increase in selfing rates, with consistent trait shifts across studied populations.

    Concerns and Potential Consequences

    • Short-Term Benefits, Long-Term Risks: While self-pollination may offer short-term advantages, it poses long-term survival threats to plants amid environmental changes.
    • Feedback Loop Risks: Reduced nectar production could lead to further declines in pollinator populations, creating a detrimental eco-evolutionary feedback loop.
    • Network Degradation: The study highlights the degradation of plant-pollinator networks, as observed in previous research.

  • Outcomes of COP28: Progress and Challenges in Climate Action

    COP28

    Central Idea

    • Annual Climate Summit: The 28th session of the Conference of the Parties (COP28) was held in Dubai, under the United Nations Framework Convention on Climate Change (UNFCCC).
    • High Expectations: There were significant expectations for countries to take decisive steps in addressing the climate crisis.
    • Key Focus Areas: Discussions at COP28 revolved around mitigation, adaptation, finance, and the differing responsibilities of developed and developing nations.

    Early Developments: Loss and Damage Fund

    • COP27 Agreement Follow-up: After agreeing to create the ‘Loss and Damage’ (L&D) fund at COP27, COP28 focused on its operationalization.
    • Funding Challenges: Despite the need for substantial funding, contributions have been limited, with the U.S. pledging only $17.5 million.
    • Administration and Access Concerns: The World Bank’s role in overseeing the fund raised issues regarding access, legal autonomy, and responsiveness to emergencies.

    Emissions Reduction and Energy Transition

    • Global Stocktake Findings: The first global stocktake (GST) assessed progress towards the Paris Agreement goals.
    • Fossil Fuel Transition: A commitment was made to move away from fossil fuels in energy systems, to triple renewable and nuclear energy capacity by 2030.
    • Continued Use in Other Sectors: Fossil fuels remain in use in sectors like plastics, transport, and agriculture.
    • Transitional Fuels and Climate Justice: The acceptance of natural gas as a transitional fuel was seen as a compromise on climate justice.

    Financial Mechanisms for Climate Action

    • Developed Nations’ Responsibility: The GST framework emphasized the leading role of developed nations in climate finance.
    • Private Sector Involvement: The role of private investment in addressing financial gaps was acknowledged.
    • Green Finance Initiatives: New mechanisms, including a $3.5 billion boost to the Green Climate Fund, were established to support sustainable practices in developing countries.

    India’s Stance on Climate and Health Declaration

    • UAE Declaration on Climate and Health: This declaration, partnered with the World Health Organisation, was signed by 123 countries but not by India.
    • India’s Concerns: India refrained from signing due to potential impacts on its growing healthcare infrastructure and the need to prioritize healthcare requirements.

    Global Methane Pledge and India’s Position

    • Renewed Focus on Methane: The pledge received attention with over $1 billion in new grants for methane reduction projects.
    • India’s Non-Participation: India did not sign the pledge, focusing instead on carbon dioxide emissions and considering the livelihood implications of methane reduction in agriculture.

    Assessment of COP28: Achievements and Shortcomings

    • Positive Developments: Notable achievements included the climate and health declaration, emphasis on nature-based solutions, and commitments to sustainable food systems.
    • Contentious Issues: Disagreements persisted over fossil-fuel subsidies, the role of the World Bank in the L&D fund, and private sector engagement in climate action.
    • Mixed Outcomes: While renewable energy targets marked progress, unresolved issues regarding L&D, fossil fuel use, and transitional fuels indicated ongoing challenges.

    Conclusion

    • Balancing Act: COP28 showcased the intricate balance between ambitious climate goals and the practical realities of economic and social factors.
    • Continued Dialogue: The outcomes reflect the need for ongoing dialogue and collaboration to address the multifaceted aspects of climate change and sustainable development.

  • Climate action needs an updated lexicon

     

    Cyclone 'Michaung' likely to make landfall on today; rain alert in many states | Latest News India - Hindustan Times

    Central idea 

    The article discusses the impact of shifting baseline syndrome on our perception of environmental changes, particularly in the context of unprecedented rainfall in south Tamil Nadu. It emphasizes the importance of officialese, or official vocabulary, in effectively communicating climate scenarios, addressing challenges in aligning definitions with lived experiences. The article also explores the global implications of terminological precision in climate negotiations and highlights the need for updated language to navigate evolving climate realities.

    Key Highlights:

    • South Tamil Nadu experiences unprecedented rainfall, reversing a northeast monsoon deficit to a 5% excess within 24 hours.
    • Shifting baseline syndrome distorts perceptions of environmental changes, impacting our understanding of losses and resource availability.
    • Climate change introduces a future-oriented shifting baseline, challenging language and memorialization of evolving climate scenarios.

    Key Challenges:

    • The deceptive simplicity of defining ‘devastating’ events, influenced by shifting baseline syndrome and community memory.
    • Official vocabulary and definitions, such as those for extreme weather events, may not align with lived experiences and evolving climate realities.
    • The role of officialese in communication, accountability, and global negotiations faces challenges in updating and aligning with ground realities.

    Key Terms and Phrases:

    • Shifting baseline syndrome
    • Shared Socio-economic Pathways (SSPs)
    • Intergovernmental Panel on Climate Change (IPCC)
    • Officialese
    • Medical certificate of cause of death (MCCD)
    • Loss and damage fund

    Key Quotes and Statements:

    • “What we consider to be ‘devastating’ is deceptively simple because of the shifting baseline syndrome.”
    • “As the impacts of climate change become clearer, we confront a different kind of shifting baseline, one that stretches into the future.”

    Key Examples and References:

    • Reference to unprecedented rainfall in Thoothukudi and Tiruchendur compared to Chennai’s Cyclone Michaung-induced rainfall.
    • Examples of official vocabulary limitations, like classifying both Chennai and Thoothukudi under ‘extremely heavy’ rainfall despite varying impacts.

    Key Facts and Data:

    • Rainfall data: Thoothukudi recorded 361.4 mm, Tiruchendur 679 mm, and Chennai 500 mm within specific periods.
    • Impact of shifting baseline syndrome on underestimating environmental losses over time.

    Critical Analysis:

    • Discussion on the challenge of aligning lived experiences with official definitions, impacting trust in institutions.
    • The importance of updating officialese to bridge the gap between evolving climate scenarios and language used in official reports.
    • Global implications of officialese in climate negotiations, particularly related to the ‘loss and damage’ fund.

    Way Forward:

    • Advocacy for localized officialese that reflects State-level laws and community context.
    • Emphasis on the need for new official words to describe unprecedented climate events to ensure effective communication and global cooperation.
    • Acknowledgment of the human toll in defining ‘devastation,’ including challenges in medical certifications and disaster responses.

  • How the Hottest Summer ever affected the Arctic?

    arctic

    Central Idea

    • Unprecedented Warmth: The Arctic experienced its warmest summer on record in 2023, warming nearly four times faster than the global average since 1979.
    • NOAA’s Comprehensive Study: The National Oceanic and Atmospheric Administration’s (NOAA) Arctic Report Card, a peer-reviewed analysis by 82 scientists from 13 countries, details the critical impacts of this warming.

    Key Findings and Consequences of the Arctic Warming

    [1] Thawing of Subsea Permafrost

    • Accelerated Thawing Process: Warmer ocean temperatures are causing a faster thawing of subsea permafrost, which contains organic matter.
    • Release of Greenhouse Gases: This thawing leads to the decay of organic matter and the release of methane and carbon dioxide, intensifying global warming and ocean acidification.
    • Research Challenges: The extent of greenhouse gas release from subsea permafrost and its future impact on global warming remains uncertain due to limited research.

    [2] Food Insecurity

    • Decline in Salmon Populations: In Western Alaska, populations of Chinook and chum salmon were 81% and 92% below the 30-year mean, respectively.
    • Size Reduction and Species Variation: The size of adult salmon has decreased, and while Chinook and chum salmon declined, sockeye salmon numbers were 98% above the 30-year mean.
    • Impact on Indigenous Communities: These changes have led to fishery closures and significant cultural and food security impacts in Indigenous communities.

    [3] Raging Wildfires

    • Canada’s Severe Wildfire Season: Canada experienced its worst wildfire season, with over 10 million acres burned in the Northwest Territories.
    • Evacuations and Air Quality Impact: The fires led to mass evacuations and affected air quality, reaching as far as the southern United States.

    [4] Severe Flooding

    • Mendenhall Glacier Thinning: The Mendenhall Glacier in Alaska has thinned dramatically, causing annual floods.
    • Significant Flooding Event: In August 2023, a glacial lake burst through its ice dam, leading to unprecedented flooding and severe property damage in Juneau.

    [5] Greenland Ice Sheet Melting

    • Rare Melting Events: The highest point on Greenland’s ice sheet experienced melting for only the fifth time in 34 years.
    • Continued Mass Loss: Despite above-average winter snow accumulation, the ice sheet lost approximately 350 trillion pounds of mass between August 2022 and September 2023.
    • Contribution to Sea-Level Rise: Greenland’s ice sheet melting is the second-largest contributor to global sea-level rise.

    Conclusion

    • Immediate and Long-Term Impacts: The record-breaking temperatures in the Arctic have immediate consequences for local communities and long-term implications for global climate patterns.
    • Need for Further Research: Enhanced research is crucial to understand the full scope of Arctic warming and to develop effective mitigation strategies.
    • Global Responsibility: The findings highlight the urgent need for concerted global efforts to address climate change and its far-reaching impacts.

  • COP28 : Understanding CCS and CDR

    ccd ccs

    Central Idea

    • At the COP28 climate talks in Dubai, discussions have centered on carbon capture and storage (CCS) and carbon-dioxide removal (CDR) technologies.
    • The interpretation of ‘abatement’ is crucial in understanding the role and limitations of CCS and CDR in climate action.

    Understanding CCS and CDR

    • CCS: This involves capturing CO₂ emissions at their source, such as in the fossil fuel industry and industrial processes, and storing them to prevent atmospheric release.
    • CDR: Encompasses natural methods like afforestation and technological approaches like direct air capture for absorbing and storing atmospheric CO₂.
    • COP28 Discussions: The term “unabated fossil fuels” in the draft texts refers to fossil fuel combustion without CCS. The texts advocate phasing out such fuels and enhancing emission removal technologies.

    Scale and Efficacy of CCS and CDR

    • IPCC’s AR6 Report: Heavily reliant on CDR for meeting the 1.5 degrees C temperature limit, assuming significant CO₂ sequestration by 2040.
    • Challenges: Direct mitigation to reduce emissions is daunting, making CDR crucial.
    • CCS Limitations: Effective CCS requires high capture rates, permanent storage, and minimal methane leakage from upstream processes.

    Concerns and Implications of CCS and CDR

    • Land Use for CDR: Large-scale CDR methods, especially technological ones, require significant land, raising equity, biodiversity, and food security concerns.
    • Impact on the Global South: CDR projects in the Global South could infringe on indigenous land rights and compete with agricultural land use.
    • Financial and Ethical Questions: The cost and responsibility of implementing CDR at scale raise questions about who should bear these burdens.

    Pitfalls of CCS and CDR

    • Potential for Increased Emissions: CCS and CDR could inadvertently create leeway for continued or increased greenhouse gas emissions.
    • IPCC Emission Scenarios: To limit warming to 1.5 degrees C, significant reductions in coal, oil, and gas use are required by 2050, with or without CCS.
    • Gas Emissions Pathways: Higher reliance on CCS and CDR could lead to emission pathways with a greater contribution from gas.

    Conclusion

    • Critical Decade Ahead: The next decade is pivotal in determining the viability and scalability of CDR methods.
    • Balancing Act: While CCS and CDR offer potential solutions for emission reduction, their implementation must be carefully managed to avoid unintended consequences and ensure equitable and effective climate action.
    • Future of Climate Negotiations: The discussions and decisions at COP28 regarding CCS and CDR will significantly influence the trajectory of global climate action and the pursuit of the 1.5 degrees C target.

  • Dubai Consensus for ‘transition away’ from Fossil Fuels

    dubai consensus

    Central Idea

    • The Dubai Consensus, a significant resolution towards reducing fossil fuel dependency, was adopted in COP 28, Dubai.

    Dubai Consensus

    • Key Clause: The resolution emphasizes transitioning away from fossil fuels to achieve net-zero emissions by 2050, aligning with scientific recommendations to limit global temperature rise.
    • Balance between Countries: The text reflects a compromise between developed and developing nations on climate action and responsibility.
    • Dilution of Language: Earlier drafts with terms like ‘phase-out’ were softened due to opposition from oil-dependent countries.
    • Coal Usage: The final text moderated its stance on coal, crucial for countries like India, calling for a phase-down rather than a rapid phase-out.
    • Methane Emissions: The consensus introduces a focus on reducing methane emissions by 2030, a potent greenhouse gas.
    • Natural Gas as a ‘Transition Fuel’: The text’s reference to natural gas as a transitional fuel could favor gas-producing countries and overlook the need for developed countries to close the finance gap in climate adaptation.

    New Funding Commitments and Future Goals

    • Diverse Opinions: While some nations expressed dissatisfaction with the agreement’s scope, others highlighted the lack of financial support for developing countries.
    • Financial Pledges: COP 28 saw commitments to the Loss and Damage Fund and pledges to decarbonize the global economy.
    • Focus on Renewable Energy: The resolution signals a move towards phasing out fossil fuels and boosting renewable energy and efficiency.

    India’s Historical Position on Climate Change

    • Emission Statistics: India, a major developing country, has historically contributed 3% of greenhouse gases (1850-2019), compared to higher percentages from the US and EU.
    • Per Capita Emissions: India’s per capita emissions are below the global average, but its development needs and population growth have made it the third-largest emitter.
    • Balancing Development and Emissions: India has been navigating the pressure to reduce emissions while addressing its developmental needs, particularly its reliance on coal.

    India’s Commitments and Challenges

    • Net Zero by 2070: India has committed to achieving a net-zero state by 2070, alongside expanding its renewable energy capacity.
    • Glasgow COP 2021 Agreement: Under pressure, India agreed to a ‘phase-down’ of coal use, highlighting the need for equitable treatment of all fossil fuels, including oil and gas.
    • Import Dependency: As a net importer of oil and gas, India has raised concerns about the focus on coal while other fossil fuels remain under-addressed.

  • Global Cooling Pledge at COP28 

    Global Cooling Pledge

    Central Idea

    • At the COP28 climate summit on November 6, 63 countries, including the US, Canada, and Kenya, signed the world’s first pledge to reduce cooling emissions.

    Global Cooling Pledge

    • Term: This pledge aims to cut cooling emissions by at least 68% by 2050, addressing a significant source of greenhouse gases.
    • Current Contribution to Global Emissions: Cooling emissions, primarily from refrigerants and cooling energy, currently constitute 7% of global greenhouse gases.
    • Projected Increase: These emissions are expected to triple by 2050 due to rising global temperatures and increased demand for cooling appliances like ACs and refrigerators.

    Role of Refrigerants in Global Warming

    • Transition from CFCs to HFCs and HCFCs: Initially, chlorofluorocarbons (CFCs) were used in cooling appliances but were phased out by the 1987 Montreal Protocol due to ozone depletion concerns. They were replaced by hydrofluorocarbons (HFCs) and hydrochlorofluorocarbons (HCFCs).
    • Greenhouse Gas Potency: Although HFCs and HCFCs don’t harm the ozone layer, they are potent greenhouse gases, with some forms like HFC-134a having a global warming potential 3,400 times that of CO2.

    Sources and Effects of HFC and HCFC Emissions

    • Leakage from Appliances: These gases often leak from damaged appliances or car air conditioning systems, especially at the end of their life cycle.
    • Contribution to Warming: The leakage of these gases contributes significantly to global warming, with the Climate and Clean Air Coalition (CCAC) highlighting their potency.

    Challenge of Cooling Energy

    • Electricity for Cooling: A significant portion of cooling emissions comes from the electricity used to power cooling appliances.
    • Fossil Fuel Dependence: Much of this electricity is generated from fossil fuels, particularly in developing countries, contributing to climate change.

    Vicious Cycle of Cooling Demand and Global Warming

    • Feedback Loop: Rising global temperatures increase the demand for cooling, which in turn contributes to more warming.
    • Growing Cooling Device Market: The number of cooling devices is expected to rise from 3.6 billion to 9.5 billion by 2050, with a potential need for 14 billion devices if cooling access is expanded globally.

    Solutions and Strategies

    • Kigali Amendment to the Montreal Protocol: Over 150 countries agreed in 2016 to reduce HFC consumption by 80% by 2047, potentially avoiding over 0.4 degrees Celsius of global warming by 2100.
    • Promoting Climate-Friendly Refrigerants: The use of natural refrigerants with lower or zero global warming potential is being encouraged.
    • Proper Disposal and Management: Effective management and disposal of refrigerants could significantly reduce CO2 emissions.
    • Alternative Cooling Methods: Focusing on building designs that reduce the need for air conditioners, such as improved insulation and ventilation, is crucial.

    Conclusion

    • The Global Cooling Pledge represents a significant step in addressing a key contributor to climate change.
    • This initiative underscores the need for global cooperation in combating the escalating challenges posed by climate change.

  • INC-3: Global Efforts to Combat Plastic Pollution

    Central Idea

    • The Intergovernmental Negotiating Committee (INC) met in Nairobi for its third round of negotiations under the UN Environment Programme.

    About Intergovernmental Negotiating Committee (INC)

    • INC is a committee that aims to develop a legally binding international instrument to end plastic pollution by 2025, as mandated by UNEA Resolution 5/14.
    • It began working in November 2022 at Punta del Este, Uruguay (INC-1).
    • The second meeting (INC-2) took place in May-June, 2023 at Paris, France.
    • INC is scheduled to complete its work by the end of 2024.

    Overview of INC-3

    • Event: The Intergovernmental Negotiating Committee (INC) met in Nairobi for its third round of negotiations under the United Nations Environment Programme.
    • Objective: To develop an international legally binding instrument to end plastic pollution worldwide, as mandated by UNEA Resolution 5/14.
    • Deadline: The INC is tasked with delivering a global plastics treaty by 2025.

    Significance of INC-3

    • Critical Stage: INC-3 was pivotal in negotiating the ‘zero draft’ text, which offered various options for core obligations and control measures.
    • Progress: Compared to INC-2 in Paris, INC-3 made substantive discussions on the treaty’s content.

    Key Aspects of the ‘Zero Draft’

    • Initial Strength: The zero draft proposed strong options for a legally binding treaty.
    • Dilution of Obligations: During negotiations, member states weakened core obligations, especially on primary polymer production, chemicals of concern, and trade.
    • Controversial Elements: The draft faced controversy over its scope and objectives, particularly regarding the production of primary polymers and lifecycle definitions.

    Financial Mechanism Discussions

    • Proposals: The draft included options like a plastic-pollution fee and reducing financial flow into high carbon footprint projects.
    • Opposition: Some countries, particularly those with vested economic interests, opposed these financial provisions.

    Trade in Plastics

    • Trade Restrictions: The treaty aims to address gaps left by the Basel Convention, but faced opposition regarding trade restrictions.
    • Misinterpretation of WTO Rules: Some countries misconstrued WTO rules to oppose trade restrictions, despite legal allowances for health and environmental protection.

    Challenges in Negotiations

    • Advocacy for Strong Provisions: African countries and Small-Island Developing States advocated for binding provisions, representing marginalized voices and emphasizing human rights and public health.
    • Rules of Procedure: INC-2’s unresolved debate on rules of procedure continued, affecting decision-making at INC-3.
    • Industry Influence: The presence of industry lobbyists indicated significant industry influence on the negotiations.
    • Stalling Tactics: Some countries used stalling and blocking tactics, delaying progress and expanding the draft text with national interest-driven changes.

    Outcomes and Takeaways from INC-3

    • Lack of Consensus: The meeting ended without consensus on intersessional work, hindering progress towards INC-4.
    • Exposure of Opposition: INC-3 highlighted the countries and industries opposed to a strong binding treaty.
    • Future Challenges: The lack of mandate adoption for the first draft development indicates significant challenges ahead in achieving a robust and effective global treaty on plastic pollution.

    Conclusion

    • INC-3’s outcomes underscore the complexities and challenges in formulating a global treaty on plastic pollution.
    • The divergent interests of member states, influenced by economic and industry considerations, pose significant hurdles.
    • The upcoming negotiations will be crucial in balancing these interests with the urgent need for effective global action to tackle the plastic pollution crisis.

  • UAE launches ALTÉRRA Fund for Climate Investments

    Central Idea

    • The United Arab Emirates, as the host of COP-28, has committed US$30 billion to establish ALTÉRRA, a climate investment fund.

    What is ALTÉRRA Fund?

    • Fund Objective: ALTÉRRA aims to mobilize US$250 billion globally by 2030, aspiring to be the largest fund dedicated to climate investments.
    • Focus: The fund is designed to transform emerging markets and developing economies through climate investments.
    • Clean Energy in India: An initial portion of the fund is allocated for developing over 6.0 GW of new clean energy capacity in India, including 1,200 MW of wind and solar projects expected to be operational by 2025.
    • Financial Requirements: Emerging markets and developing economies reportedly need US$2.4 trillion annually by 2030 to address climate change.
    • Key Verticals: ALTÉRRA will focus on four main areas: Energy Transition, Industrial Decarbonisation, Sustainable Living, and Climate Technologies.

    Leadership and Management

    • Chair: COP-28 President, Sultan Ahmed Al Jaber, will chair the ALTÉRRA fund.
    • Management Entity: Lunate, an independent global investment manager, has established ALTÉRRA.
    • Domicile: The fund is domiciled in the Abu Dhabi Global Market.

    Mission and Impact

    • Transformational Solution: ALTÉRRA is positioned as a transformative solution for attracting private capital into climate-focused investments.
    • Multiplier Effect: The fund’s scale and structure are expected to create a significant impact in climate investment.
    • Reflection of COP Presidency’s Action Agenda: The launch of ALTÉRRA aligns with the UAE’s COP Presidency Action Agenda and efforts to make climate finance more available, accessible, and affordable.

  • India pitches for Green Credit Scheme at COP28

    Central Idea

    • India introduced the Green Credits Scheme at COP28 in Dubai. PM Modi emphasized that this program goes beyond the commercial nature of carbon credits, offering a broader environmental impact.

    What is Green Credits Programme?

    • Objective: The initiative aims to generate Green Credits through plantation on degraded wasteland.
    • Inception: Launched in October by the Environment Ministry, it is designed to incentivize various environment-positive actions.
    • Action Areas: Includes tree plantation, water management, sustainable agriculture, waste management, air pollution reduction, mangrove conservation, ecomark label development, and sustainable building.
    • Scope beyond Carbon: Unlike existing carbon credit systems, this program extends incentives to actions beyond carbon emission reductions, such as water conservation and soil improvement.

    Distinctive Features

    • Market-Based Approach: The program aims to create a market for trading green credits, similar to carbon credits, where companies can earn credits for environmental actions and trade them.
    • Development Stage: Methodologies and standards for measuring and verifying such actions are under development, and the market for these credits is yet to be established.
    • Initial Buyers: It is anticipated that private companies might purchase these green credits to fulfill their Corporate Social Responsibility (CSR) obligations.
    • Wider Beneficiaries: Unlike carbon markets, which primarily target industries and corporations, the green credit program can benefit individuals and communities as well.