In 2023, global emissions in Asia reached 13.259,6 megatonnes (Mt), an increase of +5,85% compared to the previous year. Although there are positive signs, such as the steady growth of renewable energy and energy efficiency in certain countries, the challenges for this region remain significant. The consequences of climate change in Asia are increasingly palpable: extreme temperatures, flooding, prolonged droughts, internal migration, and social pressures. Asia holds one of the most important keys to leading the shift toward a more sustainable future. However, many regions continue to struggle to implement measures that lead to this future.
China: an emitting giant with an uncertain future
China remains the world's leading emitter of carbon dioxide, with 13.260 billion tons in 2023, accounting for more than 62% of total emissions in Asia. Despite the overall increase in its emissions, the country has driven a significant increase in renewable energy generation, such as solar and wind, and a reduction in the share of coal in its energy mix, which fell from 60% to 53%. In the first quarter of 2025, emissions showed a year-on-year decrease of 1,6%, attributed to the fact that 89% of new installed capacity came from renewable sources.
However, achieving a definitive peak is not yet guaranteed, due to the pressure to maintain economic growth and the possibility of restarting idle coal plants. Furthermore, Chinese state-owned enterprises were responsible for 23% of global fossil fuel emissions in 2023, highlighting their crucial role in both challenging and mitigating climate change.
Japan: increasing efficiency and sustained decline
Japan released 944,8 Mt of CO₂ in 2023, a reduction of -6,46% compared to 2022. This decrease is part of a broader trend: since 2013, the nation has managed to reduce its emissions by 22%, thanks to energy efficiency policies, technological advances, and a gradual transition to more sustainable sources.
Japan's energy efficiency is remarkable: it generates only 0,16 kg of CO₂ per USD 1.000 of GDP, one of the lowest rates globally. Furthermore, the energy sector has achieved its lowest emissions level in twenty years. However, emissions per person still reach 7,54 tons, significantly exceeding the global average of around 4,7 tons, especially in the industrial and transportation sectors. This data indicates that, despite Japan's progress in efficiency, there is still room to intensify its energy transition.
South Korea: Progress Despite Structural Barriers
As for South Korea, this country recorded 624,2 Mt of CO2 in 2023, a reduction of -4,4% compared to the previous year. Its emissions per person, at 12 tons, are among the highest in the G20, doubling the global average. Thus, coal-fired electricity production remains the most predominant source, with 3,81 t of CO₂ per capita, the second highest among major global economies.
South Korea currently ranks as the world's ninth-largest emitter of fossil fuels, contributing nearly 1,6% of the global total. Its climate ambition is increasing, but the pace of change remains insufficient, given its high dependence on coal and robust heavy industry.
India: Low per capita, but high total volume
In 2023, India was the world's third-largest emitter, accounting for approximately 2.800 billion tons of CO₂, equivalent to 10,5% of Asia's emissions. However, its per capita emissions were low (≈2,1 tons), reflecting deep internal inequalities and a development still based on coal, which generates more than 70% of its electricity.
Although it remains dependent on fossil fuels, India is making progress in the energy transition with significant investments in solar and wind power. Its goal of carbon neutrality by 2070 is a key commitment, although it lags behind the 2050 target of other countries. The challenge: to grow without repeating the polluting model of the past.
Southeast Asia: A Key Area at the Climate Intersection
Southeast Asia contributes between 15 and 16% of Asia's emissions and faces rapid economic and population growth linked to dependence on fossil fuels and a slow energy transition.
However, there are important advances: projects such as SLTEC in the Philippines and Cirebon-1 in Indonesia aim to close coal plants by 2025-2030, funded by international initiatives. The ASEAN Power Grid is driving regional integration with several renewable energy projects underway and a multilateral electricity market planned for 2045.
Singapore plans to import much of its clean electricity via submarine cables, supporting the export of renewable energy from neighboring countries. Projects such as the wind farm in Laos, which supplies Vietnam, demonstrate the success of these multilateral agreements and the consolidation of energy cooperation in the region.
Comparative table between Asia and Europe
Conclusion
We can say that Asia is facing a climate crossroads of historic proportions. According to the World Meteorological Organization, the region is warming at almost twice the global average, with average temperatures in 2024 exceeding the 1,04-1991 baseline by 2020°C. This extreme warming is causing severe heat waves, droughts, floods, and destructive typhoons that are putting pressure on economies, food systems, and public health.
Asia has the human, technical, and strategic resources to achieve a more rapid transformation. The region is already leading the growth in renewable capacity and is adopting resilience mechanisms, such as early warning systems—useful in the face of cyclones or river disasters. With prompt action and collaboration, the region can alter its trajectory and establish a sustainable model that benefits both the planet and its inhabitants.
Department of Economics and Business Casa Asia
