Global emissions hit record high despite surge in clean energy investments

Thursday 13 November 2025 - 10:50

By: Dakir Madiha

Global emissions hit record high despite surge in clean energy investments

Global carbon dioxide emissions from fossil fuels are projected to reach a record 38.1 billion metric tons in 2025, marking a 1.1% increase from the previous year, according to a report by the Global Carbon Project. This alarming milestone coincides with the COP30 climate summit in Belém, Brazil, where world leaders face mounting evidence that limiting global warming to 1.5°C is slipping out of reach.

A troubling paradox: Rising emissions amidst renewable energy growth

Despite rapid progress in renewable energy deployment, global emissions continue to rise. The remaining carbon budget to cap warming at 1.5°C now stands at just 170 gigatons, equivalent to four years of emissions at current rates. This underscores the urgency of reducing emissions to avoid catastrophic climate impacts.

A United Nations analysis revealed that while 113 countries have pledged to reduce emissions by 12% by 2035 compared to 2019 levels, this falls significantly short of the 55% reduction scientists deem necessary to keep the 1.5°C target viable. Current trajectories point to a global temperature rise of 2.3–2.5°C by 2100, a slight improvement from last year’s projection of 2.6–2.8°C.

United States leads global emission increases

The United States is expected to contribute 40% of the global emissions increase in 2025, with a 1.9% rise in its output. This trend reflects the rollback of climate initiatives under former President Donald Trump and a renewed emphasis on fossil fuel production. The U.S. increase surpasses the combined contributions of China, India, and the European Union.

Clean energy investments hit unprecedented levels

Despite the emissions surge, investments in clean energy have doubled since the Paris Agreement, reaching $2.2 trillion globally in 2025, double the $1.1 trillion invested in fossil fuels. Solar energy alone attracted $450 billion, accounting for half of all clean technology investments and two-thirds of new capacity installations.

Electric vehicle sales have also soared, rising 23% in 2025 to 16.5 million units, marking a record increase over the previous year. In the United States, solar and wind now generate 17% of total electricity, tripling their share over the past decade.

Renewable energy capacity is expected to grow significantly, with an additional 793 gigawatts in 2025. Solar capacity will rise by 9%, while wind energy sees a 21% increase. Encouragingly, 35 countries have successfully reduced emissions while growing their economies over the past decade, up from 18 in the previous period.

Calls for urgent action

Experts stress the need for immediate and sustained reductions in emissions. Pierre Friedlingstein, lead author of the Global Carbon Project study, emphasized that emissions must decline annually for the next 20 to 30 years to limit warming below 2°C. António Guterres, UN Secretary-General, described surpassing the 1.5°C threshold as a “moral failure” and a “deadly negligence.”-induced warming has already reached 1.36°C above pre-industrial levels, with 2025 expected to rank as the second or third hottest year on record, a stark reminder of the accelerating climate crisis.