more frequent every five to 15 years. if we continue to burn fossil fuels we ll see the frequency become two to three years for these extreme heat events. what you and i consider to be extreme heat, 95 degrees, is becoming easily more achievable. not only becoming more frequent but we re seeing these extremes become even more extreme yet. take, for instance, the entire globe, the average temperature we have set records since july 3rd. we re on 20 something day streak of breaking this global average temperature record across the entire planet. and we re recording temperatures that we have never seen before. take, for instance, china. as these heat domes continue to propagate across the northern hemisphere throughout our summer months, it is making these heat waves, like i said, and what this report states, virtually impossible without the effects of man made climate change. erica? sobering indeed, derek. really appreciate it. thank you. senator mitt romney in a wall street journal
the courts because that takes time, that takes money and that doesn t give you water. it s really imperative that people figure out what to do to address the situation and adapt. but what to do to address the situation and adat. ,, ., , and adapt. but you have seen the modellin: and adapt. but you have seen the modelling today that and adapt. but you have seen the modelling today that suggests . and adapt. but you have seen the modelling today that suggests he j modelling today that suggests he weighs like this will become much more common, maybe every ten or 15 years in the united states for that we will see heat domes of the kind that people are sweltering under at the moment. you ve already said the negotiations heading into the future are going to get that much more difficult. what would 2 degrees, which is where we re headed me for the colorado river and the sharing of water rights into the future? 2 degrees, the heating that already occurred, the increase in temperature that
stream. it s giving us more of these stuck weather patterns that are associated with the heat domes, the floods that we re seeing right now. so, this will all only get worse if we continue down this road. the good news, we can prevent it from getting worse if we see the action is necessary. it s funny you should say that. i was just going to ask you about it, someone showed me a graphic this morning. i was asking about the jet stream. we get back from l.a. faster than we otherwise would have. it s not a continuous thing. it s now this big bump which is capturing the heat. is that a very unsophisticated way of explaining it? that would get an a-plus in my class at penn, andrea. by the way, i got no a-pluses while i was there. you know, you get these high pressure systems that get stuck in place, those are the heat domes. and the heat you know, the jet stream gets more wavy. and when it s more wavy, you have big high pressures.
those are heat domes. you have big low pressures, those are the floods. the low pressure systems that produce all of that flooding. the wavier, jet streams, more it gets and fingerprint of global warming all over it. professor mann, thank you very much. appreciate it. what is the u.s. saying about the soldier who bolted krs the most heavily guarded border? you re watching andrea mitchell reports. rts. unbearable itch. this painful, blistering rash can disrupt your life for weeks. it could make your workday feel impossible. the virus that causes shingles is likely already inside of you. if you re 50 years or older,
center for science and he s author of the upcoming book our fragile moment. michael, this is not just el nino, as some are saying, this summer warming is right in line with what climate scientists have been predicting for years. but you say the impacts are far exceeding the predictions. what s the difference between the prediction and impact? yeah, andrea, good to be with you. what we re seeing is kind of a perfect storm. there s a little extra juice because of el nino event in the global pacific that elevates temperatures a little bit but that s on top of the tide of global pollution and fossil fuels. and those two things are now combining to give us truly unprecedented extreme weather events. not just the heat domes, heat waves, the wildfires, the floods, the superstorms.