@CopernicusECMWF From Mar 8th, 1988:

A sharp increase in methane gas in the atmosphere since 1978 will probably make the earth warmer and may worsen seasonal losses of protective ozone over Antarctica, scientists say.

https://www.nytimes.com/1988/03/08/science/methane-up-sharply-ozone-impact-studied.html

@CopernicusECMWF @GeraldKutney @MichaelEMann @rahmstorf