Guardian: 2015 has been the warmest year, globally, on record, with the lower 48 states of the US experiencing their balmiest autumn ever measured.
This kind of exceptional heat provided an appropriate setting for the Paris climate summit, where 196 nations agreed to curb greenhouse gas emissions to avoid the sort of dangerous climate change that contributes to floods, drought and damaging sea level rises.
But the past year has also seen a number of severe natural disasters, climate change-fueled or...