Category
Environment & Regeneration
Emissions, air quality and the condition of the systems that sustain life.
- Metrics
- 8
- Headline
- 4
- Last ingestion
- 2026-10-19 00:18 UTC
Headline metrics, each in its default geography
Atmospheric CO2, global annual mean
Globally averaged mole fraction of carbon dioxide in dry air at the marine surface, annual mean, parts per million.
World
CO2 emissions per person
Carbon dioxide emissions excluding land use, land-use change and forestry, per person, in tonnes.
World
Global surface temperature anomaly (NASA GISTEMP)
Annual mean global surface temperature relative to the 1951-1980 average, land and ocean combined, from NASA GISS.
World
PM2.5 air pollution exposure
Population-weighted mean annual exposure to fine particulate matter (PM2.5).
World
Other metrics, each in its default geography
Atmospheric CO2 at Mauna Loa, annual mean
Annual mean CO2 mole fraction measured at Mauna Loa Observatory, Hawaii, the longest continuous record (from 1959).
United States
Atmospheric CO2 at Mauna Loa, monthly mean
Monthly mean CO2 mole fraction at Mauna Loa Observatory, parts per million (the Keeling curve).
United States
Atmospheric CO2, global monthly mean
Globally averaged marine surface CO2 mole fraction, monthly mean, parts per million (not deseasonalized).
World
Global surface temperature anomaly (NOAA NCEI)
Annual mean global land and ocean surface temperature relative to the 20th century (1901-2000) average, from NOAA NCEI.
World