Context:
Recently, a Global Carbon Budget study, released during COP31 in Antalya, Turkey, projected that global Carbon dioxide (CO₂) emissions from fossil fuels would decline by 0.4% in 2026 to 38.2 billion tonnes, compared to 38.4 billion tonnes in 2025. The decline is attributed partly to US-Iran conflict-related supply disruptions and the growing contribution of renewable energy.
Background:
The Global Carbon Budget is an annual scientific assessment that tracks global carbon dioxide emissions from human activities, their distribution among the atmosphere, oceans and land, and the remaining carbon budget consistent with climate targets.
It is prepared by an international team of scientists and coordinated by the Global Carbon Project.
Its major objectives include monitoring global carbon emissions, assessing carbon sinks, estimating atmospheric CO₂ concentrations and evaluating progress towards limiting global warming.
Key Findings of the Study
Decline in global emissions: Fossil fuel-related CO₂ emissions are projected to fall by 0.4% in 2026, marking the first annual decline since 2020, when the COVID-19 pandemic caused a fall of around 2%.
India as the only major emitter with rising emissions: India is projected to record a 4.4% increase in fossil fuel-related CO₂ emissions in 2026, higher than its average annual growth of 3.5% over the previous decade.
Emission trends in other economies: China, the United States, the European Union and Japan are expected to register declines in fossil fuel-related emissions.
Geopolitical factors: Supply disruptions arising from the US-Iran conflict have affected fossil fuel availability and consumption, contributing to the projected decline.
Renewable energy expansion: Growing deployment of renewable energy and electric vehicles is increasingly offsetting the rise in global energy demand.
Why Is the Decline Not a Sustainable Climate Solution?
The projected decline is largely influenced by temporary geopolitical and economic disruptions rather than a permanent transformation of energy systems. Previous declines in 1974, 1981, 1992, 1998, 2009 and 2020 were also associated with economic or global disruptions, after which emissions generally resumed their upward trajectory. Therefore, a one-year decline cannot be considered a permanent peak in global emissions.
India's Emission Challenge:
India faces the challenge of balancing rapid economic development, rising energy demand and climate commitments. Increasing industrialisation, urbanisation, transport requirements and dependence on coal contribute to emission growth. At the same time, India is expanding renewable energy, promoting electric mobility and improving energy efficiency.
Global Climate Targets:
Under the Paris Agreement (2015), countries aim to limit global warming to well below 2°C and pursue efforts to restrict it to 1.5°C above pre-industrial levels. Scientific assessments indicate that global greenhouse gas emissions need to decline sharply by 2030 to maintain the possibility of achieving the 1.5°C target.
Way Forward:
The global community needs to accelerate the transition towards renewable energy, particularly solar and wind power, expand battery storage, promote electric vehicles, improve energy efficiency and reduce dependence on coal, oil and natural gas. Developed countries should also strengthen climate finance and technology transfer to support developing economies in their low-carbon transition.
Conclusion:
The projected decline in fossil fuel-related CO₂ emissions is an encouraging but limited development. Sustainable climate action requires structural transformation of energy systems rather than temporary reductions caused by geopolitical disruptions. Achieving climate goals requires coordinated global efforts, technological innovation and equitable energy transitions.
