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valleys and with climate change we're not going to have the snow. we're going to have rain in the mountains and valleys and not only is there going to be higher frequency an intensity but the atmospheric river is going to be much wider and longer. it happened in sacramento in 1861. this is really incredible. only 500,000 people lived in the central valley. today it's 37 million. 30 feet of water in all of central valley for weeks. it rained for 43 days, the equivalent of $1 trillion and they say the next one would be like a katrina times five so a warmer atmosphere holds more moisture. sometime in the next 40, 50 years, an atmospheric river will drop rainfall for three to four weeks and flood out that central valley which now, of course, is home to 37 million people. could be devastating. the capital back in the 186s was under 12 feet of ware. the news is not good so if you look at climate change the models make sense.