When Los Chocoyos in Guatemala erupted 84,000 years ago, emissions of sulfur and chlorine may have affected the climate for a long time, new research shows.
Melting of ice in permafrost ground leads to processes of change in the Arctic landscape – thermokarst. This may cause faster thawing of the permafrost according to a new study.
The largest of all mass extinctions on Earth happened at the end of the Permian Period, 252 million years ago. Volcanism and The Siberian Traps may have been part of the cause.