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Discuss global warming and mention its effects on the global climate. Explain the control measures to bring down the level of greenhouse gases which cause global warming, in the light of the Kyoto Protocol, 1997.

GS 3
Environment & Ecology
2022
15 Marks

Global warming refers to the rise in Earth’s average temperature due to increasing concentration of greenhouse gases (GHGs) like CO₂, CH₄, N₂O, and CFCs. As per IPCC AR6 Report (2021), global surface temperature has already risen by 1.1°C above pre-industrial levels, largely due to anthropogenic activities.

Effects on Global Climate

  1. Rising Temperatures – 2016 & 2020 were the hottest years on record (WMO).

  2. Melting of Ice & Sea Level Rise – Arctic sea ice shrinking by ~13% per decade; global sea level rise of ~3.7 mm/year.

  3. Extreme Weather Events – Heatwaves in Europe, floods in Pakistan (2022), droughts in Africa linked to warming.

  4. Disturbance of Monsoon Patterns – Indian monsoon becoming more erratic, affecting agriculture & water security.

  5. Ocean Acidification – 30% increase in acidity since industrial revolution → coral bleaching.

  6. Impact on Biodiversity & Health – Species extinction (e.g., Great Barrier Reef corals), vector-borne diseases expanding.

Control Measures in Light of Kyoto Protocol, 1997

The Kyoto Protocol (1997), operational since 2005, was the first binding international treaty to reduce GHGs, based on Common but Differentiated Responsibilities (CBDR).

  1. Clean Development Mechanism (CDM)

    • Allowed developed countries (Annex-I) to invest in emission-reducing projects in developing countries and earn Certified Emission Reductions (CERs).

    • Example: India hosted over 1,700+ CDM projects (wind farms, biogas, energy efficiency), making it one of the largest CDM beneficiaries.

    • Helped channel foreign investment + technology transfer into green projects in India.

  2. Joint Implementation (JI)

    • Similar to CDM, but applied between two developed countries (Annex-I).

    • A country with emission reduction commitments could finance a project in another Annex-I country and count the reduction towards its own target.

    • Example: A German company investing in a renewable project in Eastern Europe.

  3. International Emissions Trading (IET)

    • Allowed developed countries to trade emission allowances/credits with each other to meet their reduction targets.

    • Created the carbon market, where “carbon credits” became a tradable commodity.

    • Example: EU Emissions Trading System (ETS) became the largest such market, cutting European industrial emissions significantly.

Control Measures Inspired by Kyoto

  1. Adoption of Renewable Energy

    • Kyoto created global pressure on countries to shift away from fossil fuels.

    • India set up the National Solar Mission (2010), targeting 100 GW solar capacity by 2022 (now extended to 2030).

    • Globally, renewables now account for ~30% of electricity generation (IRENA 2022).

    • This transition helps cut carbon intensity and ensures energy security.

  2. Energy Efficiency Improvements

    • Kyoto emphasized the role of efficient technologies in emission reduction.

    • India’s Perform, Achieve, and Trade (PAT) scheme incentivizes industries to reduce energy intensity.

    • Initiatives like Energy Efficiency Financing Platform (EEFP) mobilize investments for retrofitting and green buildings.

    • Reducing energy wastage lowers both emissions and costs for industries.

  3. Carbon Pricing and Trading Mechanisms

    • Kyoto popularized the concept of a carbon market, enabling polluters to buy and sell carbon credits.

    • The EU Emissions Trading System (EU-ETS) became a model, reducing emissions by 41% in power & industrial sectors (2005–2020).

    • India has launched a domestic carbon credit trading scheme (2023) to encourage clean technologies.

    • Such market mechanisms make carbon reduction economically viable.

  4. Afforestation and Carbon Sinks

    • Kyoto recognized forests as major carbon sinks.

    • India’s Green India Mission aims to enhance carbon sink by 2.5–3 billion tonnes of CO₂ equivalent by 2030.

    • REDD+ (Reducing Emissions from Deforestation and Degradation) incentivizes forest protection in developing nations.

    • Expanding forest cover improves biodiversity, water conservation, and soil health.

  5. Methane Capture and Waste Management

    • Kyoto included non-CO₂ gases like methane and nitrous oxide in reduction commitments.

    • Landfill methane capture projects and biogas plants have been promoted in India under CDM.

    • Swachh Bharat Mission also indirectly reduces methane by improving solid waste management.

    • Methane capture projects deliver both emission reduction and rural energy access.

  6. International Cooperation and Technology Transfer

    • Kyoto encouraged North-South cooperation, particularly through CDM projects.

    • India emerged as a major host country for CDM, with projects in wind, biomass, and hydropower.

    • Technology transfer from developed countries enhanced renewable adoption in developing nations.

    • Such cooperation paved the way for more inclusive agreements like the Paris Agreement (2015).

Global warming poses an existential threat to humanity by destabilizing climate systems, food security, and ecosystems. The Kyoto Protocol initiated the first collective steps, but subsequent agreements like Paris (2015) and Glasgow Pact (2021) underline the need for faster, deeper emission cuts.

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