Scientists link climate change to extreme weather this summer

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Scientists link climate change to extreme weather this summer
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the summer may feel hotter than usual because for many parts of the world it is a new report from axios knows that from deadly fires in the US to high temperatures in Scandinavia this year’s Global Heat Wave is so pervasive it’s surprising scientist according to the report weather is linked to human-caused climate change and we will likely see more of it joining me now is the author of that report Andrew Freedman he’s a science editor for axios Andrew thanks for joining us fires in the u.s. and the Arctic Circle to high temperatures around the world why are we seeing so many extremes this summer and then with the natural variability so when the jet stream gets to position that it favors a certain type of extreme then you see long-term climate Trends added that natural component and we’re really low sing the dice that we’re going to have an unprecedented Heatwave rather than just an ordinary Heatwave or an unprecedented amount of rain rather than rather than the more gentle amount of rain that you would have had a few decades ago we’re really seeing the signal climate change in merge with in our day-to-day week-to-week and season-to-season weather what more can you tell us about that so they examined basically number of computer models and observational records and compared what would have happened in this case had we not been emitting Greenhouse buses from fossil fuels for all these decades and we know what the climate would have done and what the likelihood is that this heat wave would have occurred what they found was the heat wave that hit the UK Scandinavia arts and the Arctic was two to five times more likely to occur in today’s climate versus had we not been emitting all these greenhouse gases so we’re loading the dice for these extreme events in addition found that in the Arctic in the Norwegian Arctic which you typically need a fleece jacket to visit at this time of year it’s been in the low-90s which is unprecedented in the historical record and I’m looking for models unless they Incorporated greenhouse gases the computer models just didn’t simulated scientist who were drawing links between climate change and specific weather events say now there’s a lot of resources but going on so particularly when it comes to heat waves like we’ve been seeing an extreme precipitation event we really know what’s happening it’s really basic physics of when you move the clock a little bit warmer at the odds of warmer extremes go up by a lot when you make the climate a little bit warmer you end up putting more water vapor in the air and that’s available for storms and then you end up getting heavier precipitate dropping out of the store when you go into some other types of extreme events like hurricanes and a local events like tornadoes there’s a lot of active research going on but there’s not as much definitive things that we can say so because we’ve been seeing such stuck jet stream patterns where these weather events are happening day after day after day after day in the same area and because they’ve been mostly heat-related and mostly precipitate related that scientists have been a lot more confident than you might otherwise expect and these are trends that they expected to emerge from the climate maybe in a few these are being seen now and you know that worries many of the people who are looking further down the road and how much more we know how much warmer we are going to get well the most obvious thing is to you no cut the emissions of greenhouse gases that’s on a state local Regional National level people you know an individual might not have a ton of say so they can make personal choices also what really needs to be happening and what is happening in many US cities and states is to really prepare for the impacts of climate to make our cities more heat wave resistant everything from Los Angeles painting some streets white to have a lower Urban heat island to opening more heat shelters I mean La sat there all time high temperature record of 111 on July 6th so they prepare for what is inevitably going to happen already just because of the climate change in the pipeline while other people and policymakers at work to address the climate change on a more long-term it’s really about resilience combined with what is spent the fancy term is mitigation but really we’re just talking about working to try to reduce the severity of climate change over the long-term treatment with axios Andrew thanks very much
A new report by Axios says scientists are blaming climate change for the extreme weather this summer, ranging from fires to record-breaking temperatures. Andrew Freedman, Axios science editor, joins CBSN to discuss his reporting and how to slow the effects of global warming.

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