Cold Snap Ties Record Low Temperature in Cuba

HAVANA, Cuba, Oct 30 (acn) A cold snap set the lowest temperatures for October on Wednesday in several sites of the interior of western Cuba.

Researchers tie warming poles to human activity

An international team says it has proven humans are driving up temperatures in both the Arctic and Antarctic.

The team, led by Environment Canada climatologist Nathan Gillett, says greenhouse gases pumped into the atmosphere by cars, factories and human activities are a key factor fuelling the change.

"Our results demonstrate that human activities have already caused significant warming in both polar regions, with likely impacts on polar biology, indigenous communities, ice-sheet mass balance and global sea level," the researchers reported Thursday in the journal Nature Geoscience.