Global warming is accelerating as global emissions continue to increase. The world is in worsening climate and biodiversity emergencies, which make each other worse. The climate system is now clearly in emergency status. Every major indicator is tracking at or beyond the worst-case projections from even a decade ago. The data below represents the most current measurements available from NOAA, NASA, WMO, NSIDC, and other primary sources.
Mauna Loa, 2024 annual mean
Pre-industrial: ~280 ppm
Safe level: ~350 ppm (Hansen et al.)
Annual increase: +2.4 ppm/year (accelerating)
Highest in at least 3 million years
Source: NOAA Global Monitoring Laboratory
2024 anomaly above 1850–1900 baseline
2023 anomaly: +1.45°C
10-year average: +1.3°C
Paris 1.5°C limit: Already exceeded in 2024
Every decade warmer than the last since 1980s
Source: Copernicus/ERA5
September 2024 minimum: near-record low
Decline rate: ~13% per decade (summer minimum)
Multi-year ice: ~90% reduction
Albedo feedback accelerates warming
Ice-free Arctic summers likely before 2040
Source: NSIDC
CO₂eq — EDGAR 2025
Fossil CO₂: 37.4 Gt (record high)
Methane: 9.9 Gt CO₂eq
N₂O: 3.4 Gt CO₂eq
Land use change: ~4 Gt CO₂
Still rising — no peak yet
Source: EDGAR 2025 (EU JRC)
Of excess heat since 1971
2023–2024: Record ocean temperatures globally
Marine heatwaves: 4× more frequent since 1980s
Deep ocean heating: accelerating
Thermal expansion committed to 0.5–1m sea level rise
Source: ARGO floats / IPCC AR6
Satellite era average
Acceleration: rate has doubled since 1990s
Projected: 0.5–1.0m by 2100 (likely range)
2m+ possible with ice sheet instability
0.5–1m committed from thermal expansion alone
Source: Satellite altimetry / IPCC AR6
