Independent: Global warming is responsible for the recent spate of summer heatwaves, according to James Hansen, the scientist who first alerted the world to the dangers of climate change. Dr Hansen, director of Nasa’s Goddard Institute for Space Studies in New York, said that the “climate dice” are now loaded in favour of extreme heatwaves which now affect 10 per cent of the Earth’s surface, compared with about 1 per cent in the period between 1951 to 1980.
Dr Hansen said that at least three extreme summers…