Climate change, live · 1880–2025
The climate crisis in numbers
Live data from NASA, NOAA, NSIDC and Copernicus — and what scientists say it means. Every number links to its source.
Since you opened this page, the world has emitted 0 tonnes of CO₂.
The planet's vital signs
Your city in 2050
How much has your city warmed, how hot will it get — and which city will it feel like? Explore 100 cities, sea level by city and 60 countries.
How much each city has warmed since 1951–1980
London → BerlinNew York City → YanchengStockholm → CopenhagenSydney → Buenos AiresParis → BursaToronto → Chicago
Watch the planet warm
The climate spiral: global temperature by month, 1880–2026
Where heat becomes dangerous
Today 0.5% of the world's land (outside Antarctica) has a month or more of dangerous humid heat each year. By 2090 it would be 12% under intermediate emissions, or 33% if emissions keep rising. Switch between the scenarios, or explore the full extreme heat map.
Days per year with dangerous heat (heat index ≥ 39 °C)
0.5% of the world's land (outside Antarctica) has 30 or more dangerous-heat days a year — 1995–2014 average.3.6% of the world's land (outside Antarctica) has 30 or more dangerous-heat days a year — 2050, intermediate emissions.11.9% of the world's land (outside Antarctica) has 30 or more dangerous-heat days a year — 2090, intermediate emissions.32.9% of the world's land (outside Antarctica) has 30 or more dangerous-heat days a year — 2090, very high emissions.
Where we are
The past 12 months were 1.51 °C warmer than the late 19th century.2024 is the warmest year on record. The Paris Agreement aims to keep long-term warming well below 2 °C and to pursue 1.5 °C; at today's emissions, the carbon budget for 1.5 °C runs out within a few years.
The IPCC is clear that this is caused by human activity, that every increment of warming makes extremes worse — and that how much worse is still being decided by the choices made this decade.