forced the iconic u. seventeen national park to close for the first time in nearly thirty years. meanwhile in colorado just two states away flooding. and severe health storms. even more alarmingly sweden has seen its extremely dry forests liked up. clouds of smoke rising even inside the arctic circle. the u.k. is known for its complaints about the rain but this summer it s dealing with fire what s unusual is that all of this is happening in so many places at the same time . the intergovernmental panel on climate change the body of experts who look at the evidence say that manmade climate change is increasing the likelihood of extreme weather events now many people around the world are dealing with the questions long discussed by environmentalists are now urgent is this the new normal and how do we deal with it. well let s put those questions to hunt linda holmes he s