north america. his specific work concerns impacts of climate changes on water resources and other sectors in west europe north america and he also worked on large scale exchange of heat and water between the ocean and the atmosphere. dan is also a director of the california climate change center a center that works to improve and forecast for decision makers in the california region and i'm sure it's information we can take throughout the united states. dan recieved a bachelor of science in meterologist and oceanographer and received in 1971 from university that makes us about the same age dan, but i'm just a broken down lawyer and economists. he received a, ph.d., in ee in san diego. his speech today will focus on climate change and it's challenge to our water supply. please welcome doctor dan cohan. >> thank you susan, well, it's a privilege to be here. i'm really impressed with the gathering that you've all assembled here in and the quality of the discussion. so i know that i don't want to wear out my welcome so i'll try to get through this sort of on time. you know at one time there was a pointer up

north america brings is into europe. we're suffering from the warm up. >>> winds are west at 13. humidity at 70%. dew point is 20.isories still in effect in the last of the warm air and winter weather advisories, down wind of the great lakes, where the snows are enhanced by the moisture. look at the storms along the front edge of the air. they tougherred over 3 -- towered over 30,000 feet. they are in the carolinas north to virginia. here is a snow return in the area, radar is not picking up all the snow but and we're told one viewer in oak brook measured .4 of snow. and flurries and as we saw, this is the snow that fills the cracks and the sidewalks but does little beyond that. unless you are in the snow belt across the lakefront in michigan. we say goodbye to this one with the flurries then this is the next one we watch, that's out to the west there is a piece of energy and on the nose you get lift that can make snow. watch how it settled. we may get a wind to come down the lake and upper winds are due northerly. and enhance the snow showers. ten of the last 11 forecast model runs have generated measurable snow