2025 Poised to Become One of the Hottest Years on Record

Scientists are now saying that 2025 is almost certain to end as the second- or third-warmest year in modern history. 

What the Numbers Say

According to the Copernicus Climate Change Service (C3S), the global average surface air temperature between January and November 2025 was about 1.48 °C above “pre-industrial” levels (the baseline from 1850–1900). 

November 2025 was especially hot: it is now ranked as the third-warmest November ever recorded globally. 

If December’s data doesn’t drastically cool things down, 2025 will tie with 2023 as the second-hottest year ever — just behind 2024, which remains the warmest on record. 

The rising temperatures are primarily driven by human-made emissions of greenhouse gases — such as carbon dioxide — which trap heat in the atmosphere. 

Even natural climate patterns, like La Niña (which usually cools global temperatures), haven’t been enough to offset the rise caused by emissions. As a result, the world has experienced a near-constant stream of record-breaking months since mid-2023. 

Consequences: Extreme Weather & Climate Risks

Because of the rising global heat, scientists warn that dangerous weather events are likely to become more frequent and more intense:

More heatwaves, more wildfires — especially in regions prone to drought or heat stress. 

Increased storms, floods and cyclones — as warmer atmospheric and ocean temperatures fuel powerful weather systems. 

Melting ice, rising sea levels, shrinking polar ice — with serious long-term risks for coastal areas and low-lying nations. 

Threats to ecosystems, biodiversity, agriculture and human health — from heat stress, water scarcity, crop failure, displacement and more. 

Climate experts warn that this trend is not a temporary blip — but a signal that the planet is entering a new, hotter climate era. 

What the World Must Do — and Why It Matters for Everyone

The fact that the 2023–2025 period may permanently cross the 1.5 °C threshold (set by the Paris Agreement) is a major warning sign. It shows that previous climate pledges — without swift, deep cuts in emissions — may not be enough.

Governments, industries and people around the world need to accelerate reduction of greenhouse gas emissions — shifting to clean energy, ending reliance on fossil fuels, and strengthening climate policies.

At the same time, nations (especially vulnerable ones) must prepare for more frequent extreme weather: improving early-warning systems, investing in climate-resilient infrastructure, supporting communities at risk.

Global cooperation is now more urgent than ever — because this isn’t a problem one country can solve alone. What happens in one part of the world affects life everywhere.