Hurricane Katrina was not caused by climate change. But climate scientists have long forecast that extreme weather events become more likely in a changing climate. The latest analysis suggests that hurricanes have indeed become more intense in recent decades.
Those of us living in the comfort of the developed world have been given a graphic insight into what a lack of energy and climate security really means. Britain had one foretaste during the fuel price protests. Then we found ourselves living in a country with plentiful supplies of food and no means of getting it to the people who needed it. There was another in the flash floods in the Cornish village of Boscastle last year.
