Experts say an uptick in drought and other extreme weather events has beef farmers in the U.S. and Canada thinning their herds in near-record numbers, which could lead to supply problems in the beef industry over the longer term.
The Arctic sea ice has suffered devastating loss and has shrunk to its second lowest on record. Melting sea ice is just one of many signs of a warming climate in the North. Emanuela Campanella explains how climate change is rapidly transforming the Arctic Circle.
