Warming Watch

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.

+1.51°Cwarmer than pre-industrial, last 12 months427.2ppmCO₂ in the air (280 before industry)53.200GtCO₂ left in the 1.5 °C budget — falling every second

Since you opened this page, the world has emitted 0 tonnes of CO₂.

The planet's vital signs

Global temperature, last 12 months
+1.51°C
above pre-industrial (1850–1900)
Data: 29 October 2026
CO₂ in the atmosphere
427.2ppm
pre-industrial: ~280 ppm
Data: 29 October 2026
Arctic sea ice extent
7.76M km²
−1.77 vs 1981–2010 for this date
Data: 30 October 2026
Global sea level
+103mm
since 1993 · 3.1 mm/yr
Data: 16 February 2025
Carbon budget left for 1.5 °C
53Gt CO₂
≈ 1.3 years at today's emissions
Data: 31 October 2026

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

0 °C0.5 °C1 °C1.5 °C2 °C2.5+ °C
Delhi: +0.1 °CSantiago: +0.1 °CLahore: +0.4 °CPerth: +0.5 °CCape Town: +0.5 °CLima: +0.6 °CChattogram: +0.6 °CBogota: +0.7 °CSingapore: +0.7 °CBrisbane: +0.7 °CKarachi: +0.8 °CSan Francisco: +0.8 °CDhaka: +0.8 °CMelbourne: +0.8 °CMumbai: +0.8 °CKano: +0.8 °CChongqing: +0.8 °CAbidjan: +0.8 °CDar es Salaam: +0.9 °CLisbon: +0.9 °CManila: +0.9 °CRio de Janeiro: +0.9 °CSydney: +0.9 °CDublin: +0.9 °CBengaluru: +1.0 °CBuenos Aires: +1.0 °CAuckland: +1.0 °CHong Kong: +1.0 °CHanoi: +1.0 °CJakarta: +1.1 °CSeattle: +1.1 °CAlexandria: +1.1 °CSao Paulo: +1.1 °CBangkok: +1.2 °CHo Chi Minh City: +1.2 °CMiami: +1.2 °CLagos: +1.2 °CLos Angeles: +1.2 °CNew Orleans: +1.2 °CCasablanca: +1.2 °CIstanbul: +1.3 °CKinshasa: +1.3 °CYangon: +1.3 °CAthens: +1.4 °CChicago: +1.4 °CToronto: +1.4 °CEdinburgh: +1.4 °CJohannesburg: +1.4 °CSeoul: +1.5 °CManchester: +1.5 °CTaipei: +1.5 °CHouston: +1.5 °CDallas: +1.5 °CAtlanta: +1.5 °CMontreal: +1.5 °CNairobi: +1.5 °CVancouver: +1.5 °CNew York City: +1.6 °CBoston: +1.6 °CJeddah: +1.6 °CAddis Ababa: +1.6 °CWashington: +1.6 °CDenver: +1.6 °CGothenburg: +1.6 °CIbadan: +1.6 °CBudapest: +1.7 °CTokyo: +1.7 °CLondon: +1.7 °CBamako: +1.7 °CAmsterdam: +1.8 °CCairo: +1.8 °CStockholm: +1.8 °CBrussels: +1.8 °CBarcelona: +1.9 °CParis: +1.9 °CRome: +1.9 °COsaka: +1.9 °CLas Vegas: +2.0 °CBeijing: +2.0 °CShanghai: +2.0 °CPhoenix: +2.0 °CMadrid: +2.0 °CCopenhagen: +2.0 °CBaghdad: +2.0 °CKabul: +2.1 °CPrague: +2.1 °CBerlin: +2.1 °CVienna: +2.1 °CZurich: +2.1 °CMexico City: +2.1 °CWarsaw: +2.1 °COslo: +2.1 °CHelsinki: +2.2 °CSaint Petersburg: +2.3 °CPeshawar: +2.3 °CDubai: +2.3 °CTehran: +2.3 °CMilan: +2.4 °CMoscow: +2.5 °CRiyadh: +2.7 °C
Last ten years vs 1951–1980, Copernicus ERA5 via World Bank CCKP. Click a city for its 2050 projection. Map: Natural Earth.

London → BerlinNew York City → YanchengStockholm → CopenhagenSydney → Buenos AiresParis → BursaToronto → Chicago

Watch the planet warm

The climate spiral: global temperature by month, 1880–2026

0 °C1.5 °C2 °CJanFebMarAprMayJunJulAugSepOctNovDec2026
NASA GISTEMP v4 monthly anomalies relative to 1880–1900 (an approximation of pre-industrial). The 1.5 °C and 2 °C rings refer to single months here; the Paris goals refer to 20-year averages. Concept: Ed Hawkins, University of Reading.

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.

Climate change, explained

Your lifetime
How much has the world warmed since you were born?
Enter your birth year: your warming, CO₂, Arctic ice, sea level and your own warming stripes.
The evidence
Is climate change real? The evidence in 6 charts
Temperature, CO₂, attribution, ice and sea level — straight from the agencies that measure them.
1.5 °C
What does 1.5 °C of warming actually mean?
Have we crossed it, and how much worse is 2 °C for heat, reefs, ice and species?
Tipping points
Climate tipping points: which are we closest to?
Thresholds for Greenland, the Amazon, the AMOC and coral reefs — and the first one crossed.
2050
What will the world look like in 2050?
The IPCC's scenarios for mid-century: heat, seas, Arctic ice, migration and health.