Torrential rains unleashed on south Louisiana in August were made almost twice as likely by human-caused climate change, according to a quick-fire analysis released just weeks after the flood waters subsided. The team of scientists concluded that such an event is expected to occur a minimum of 40% more often now than in 1900, but their best estimate is that the odds have now halved. Dr Friederike Otto , a senior researcher in extreme weather and attribution in the Environmental Change Institute at Oxford University, who wasn’t involved in the research, tells Carbon Brief: “It is a very striking example of the impact that climate change already has on us today…it is the rainfall event with the highest increase in risk […]