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.

US should prepare for many more heatwaves, says government-funded report

Heat waves like the one now roasting the Eastern Seaboard are likely to become commonplace over the next 30 years, say scientists at Stanford University - even if global temperatures rise by only one degree Celcius.