EnvironmentAncient mass extinction shows how Earth turned into a super-greenhouse A study of fossils from the Permian-Triassic extinction event 252 million years ago shows that forests in many parts of the world were wiped out, disrupting the carbon cycle and ensuring that Earth remained hot for millions of years News
EnvironmentOffsetting global fossil fuel stores by planting trees is impossible Trees would have to be planted on a vast proportion of global land mass to offset the carbon dioxide emissions from burning the world’s fossil fuel reserves News