Greenhouse gases
149%
Carbon dioxide (CO2) in 2021 was 149% higher than pre-industrial levels.
48%
From 2011 to 2020, 48% of emissions from human activities accumulated in the atmosphere, 26% in the ocean and 29% on land.
80%
From 1990 to 2021, heating impacts of long-lived greenhouse gases increased by 49%; 80% of these were due to CO2.
1.1°C
The average global temperature is now more than 1.1°C above the 1850–1900 pre-industrial average.
Methane (CH4)
The annual increase in methane in 2020/2021, 15 &18 ppb, respectively, are the largest concentration increases on record.
40%
Human activities are responsible for more than 40% of emissions of nitrous oxide (N2O) in the atmosphere.