Major economies are heading toward a "population collapse" by 2100 because of falling fertility rates, new research has found. A report by the McKinsey Global Institute (MGI) on Wednesday, warns the ...

Scientists have quantified how much climate change has driven the population decline of polar bears living in Canada's Hudson Bay.

This week, the Congressional Budget Office once again reduced its population projections for the U.S. for 2025-2055. Last ...