Methane emissions

Annual global mean methane levels in air,

parts per billion

2,000

2022

1,912

1,900

1,800

1,700

1,600

1990

2000

2010

2020

Annual global mean methane levels in air, parts per billion

2,000

2022

1,912

1,900

1,800

1,700

1,600

1990

2000

2010

2020

Guardian graphic. Source: NOAA. Note: number of methane molecules in a sample of air after water has been removed. Mean shown as long-term trend, similar to a 12-month running mean, where the average seasonal cycle has been removed