'Frozen' atmospheric waves trigger extreme weather events

Another report has linked man-made climate change with extreme weather events around the world, including recent heat waves in the United States and Russia and the unprecedented Pakistan flood.

World set for many more record-breaking heat waves

Long-term global warming has brought the world five times as many record-breaking hot months worldwide - ten times as many in parts of Europe, Africa and southern Asia. And it's only going to get worse.