Scientists at UC Irvine have determined that levels of atmospheric methane – an influential greenhouse gas – have stayed nearly flat for the past seven years, which follows a rise that spanned at least two decades....Methane has an atmospheric lifetime of about eight years. Carbon dioxide – the main greenhouse gas that is produced by burning fossil fuels for power generation and transportation – can last a century and has been accumulating steadily in the atmosphere.
Methane has a greater greenhouse effect than carbon dioxide, so this is good news, although methane is of lesser importance because of much smaller amounts in the atmosphere.
No comments:
Post a Comment