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The world seems headed into another El Nino, just 3 years after the last one. Such quick return normally would imply, at most, an El Nino of moderate strength, but we suggest that even a moderately strong El Nino may yield record global temperature already in 2026 and still greater temperature in 2027. The extreme warming will be a result mainly of high climate sensitivity and a recent increase of the net global climate forcing, not the result of an exceptional El Nino, per se. We find that the principal drive for global warming acceleration began in about 2015, which implies that 2°C global warming is likely to be reached in the 2030s, not at midcentury.
Welcome to the Global Climate Highlights 2025 report, compiled by the Copernicus Climate Change Service (C3S). The Global Climate Highlights 2025 report provides authoritative climate data and concise insight on a global scale about 2025's climate conditions, covering surface and sea surface temperature, heat stress, sea ice extent in the Arctic and Antarctic, among others.
US President Donald Trump has announced the reversal of the so-called endangerment finding, a key Obama-era scientific ruling that underpins much of US environmental legislation. As a result of this, experts are predicting various environmental and economic impacts, though the decision by the US Environmental Protection Agency (EPA) is expected to be challenged in the courts from environmental groups.
As global soy giants walk away from a landmark pact, land grabbers move in to clear the forest for new crops.
A critical step on the path towards climate neutrality, the European Union’s 2040 target calls for a 90-per-cent reduction in emissions. Yet as far-reaching as this goal may seem, its provisions constitute a weakening of Europe’s climate ambitions under the Green Deal. By allowing costly and ineffective CO2 removal and storage technologies as a way of lowering emissions, the target risks deterring direct emission cuts and outsourcing pollution.
When a series of power outages hit Europe last year, the finger of blame was quickly – and falsely – pointed to an unlikely source: renewables. Blackouts are being used as a political tool to oppose the energy transition. But they can also become an opportunity for open discussions about energy infrastructure – a topic too often reserved only for technical audiences.
With warming set to pass the critical 1.5-degree limit, scientists are warning that the world is on course to trigger tipping points that would lead to cascading consequences — from the melting of ice sheets to the death of the Amazon rainforest — that could not be reversed.
China’s carbon dioxide (CO2) emissions fell by 1% in the final quarter of 2025, likely securing a decline of 0.3% for the full year as a whole.
Neonicotinoid insecticides are a major driver of pollinator decline. Due to their persistence and mobility in soil, they can contaminate non-target vegetation through runoff or dust, reaching pollinator resources. However, predicting soil contamination is challenging, especially where pesticide use data is lacking. This study assessed the potential of using proxies such as cropping history and landscape structure to predict neonicotinoid content in soils. We analyzed seven neonicotinoids in 86 sites in agricultural landscapes of Belgium.
By the end of this century, parts of Africa could face heatwaves for 250-300 days a year, which will make it difficult for people to survive.
Newborn babies are particularly vulnerable to hot conditions. They have a limited ability to control their body temperature.
Doyne Farmer says a super-simulator of the global economy would accelerate the transition to a green, clean world
Continued global heating could set irreversible course by triggering climate tipping points, but most people unaware
Today, we are close to the critical moment when conventional economic growth becomes impossible on a finite planet, constrained by two parallel factors: resource depletion and pollution. Tthe depletion of fossil fuels and other mineral commodities is placing heavy constraints on both industrial and agricultural production. We are not running out of anything yet, but the cost of extraction is increasing, just as the damage that extraction causes to the ecosystem. On the other side, pollution is appearing in more than one form. Chemical pollution is growing in terms of heavy metals, endocrine-disruptors, and other poisoning substances, while climate change can be seen as another form of pollution generated by the excess of CO2 in the atmosphere.
The world seems headed into another El Nino, just 3 years after the last one. Such quick return normally would imply, at most, an El Nino of moderate strength, but we suggest that even a moderately strong El Nino may yield record global temperature already in 2026 and still greater temperature in 2027. The extreme warming will be a result mainly of high climate sensitivity and a recent increase of the net global climate forcing, not the result of an exceptional El Nino, per se. We find that the principal drive for global warming acceleration began in about 2015, which implies that 2°C global warming is likely to be reached in the 2030s, not at midcentury.
In Belem, Brazil’s leader, President Lula da Silva, opened the talks by denouncing obstructionists who “reject scientific evidence and attack institutions.” “They manipulate algorithms, sow hatred and spread fear,” he said, describing a surge in disinformation and propaganda aimed at blocking action to slow climate change. The summit, for the first time, put the issue on the agenda. A coalition of countries and international agencies issued a separate “Declaration on Information Integrity on Climate Change,” calling on governments to address climate disinformation, promote transparency and protect journalists, scientists and environmentalists.
Children’s developing lungs make them vulnerable to air pollution.
The world endured its costliest wildfire on record in 2025, its sixth-deadliest heat wave, and four floods or storms that caused at least 1,000 deaths.
Climate change is making it challenging to identify future host cities.
I know it’s almost impossible to turn your eyes away from the Trump show, but that’s the point. His antics, ever-grosser and more preposterous, are designed to keep him in our minds, to crowd out other issues. His insatiable craving for attention is a global-threat multiplier. You can’t help wondering whether there’s anything he wouldn’t do to dominate the headlines.
