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SFGTV2 August 25, 2010



assume future climate will look like the past. actually i ll say it one more time on the conclusion. do not justify actions using climate change without the science to support them unless their justified for other reasons. i m going to poke a bear here - a big bear - but he s not in the room so can t kick me out. the governor proposed two new surface reservoirs in california and the large part of the back up justification was issue of climate change and the terrible impact on storage. people are not doing to believe this, not opposed to new damages but i m apposed to amdams. i think it s a great way to evaluate new,dams or possibilities for them in california it s not good enough reason to build them and that s an important distinction. ironically we re having this same debate in nuclear power. climate change is a great thing to open the debate for nuclear power but by itself, not a good argument to build new nuclear power plants. there s economics, basic global problem ....

United States , Santa Clara Valley , Central Valley , Colorado Springs , Sport Land , District Of Columbia , Dave Erickson , Jarrod Hudson , Pa Leo ,

SFGTV2 August 18, 2010



specific reservoirs or river basins and how flexible or inflexible they might be under existing rules and there are a couple of studies that look at different kinds of reservoir rules but not systematically and i don t think there s been any system reoperation. corner me later and tell me i m wrong but i would argue that on the demand for water. it has been mentioned a couple of times here. seattle may have done that and port land may have integrated it into management. temperature is going up, demand for water is going up. how many of our water agencies include in their demand forecast for the year 3020, 3050, climate effects on demand. the last california water plant did a much better job of acknowledging the issue of climate change but not yet adequately took action. we re beginning to work now on the next one and the intention i believe, is there will be a more deeper analysis and i look forward to that. next slide. this is a graph, and i want to say couple of thing ....

United States , Santa Clara Valley , Colorado Springs , Sport Land , District Of Columbia , Dave Erickson , Jarrod Hudson , Pa Leo ,

SFGTV2 August 11, 2010



an argument for doing certain large investments and building things and we have to be careful about building infrastructure for the wrong reasons. i won t say anymore about that. let me conclude. manager s and planners, city and state water manager s can no longer assume the water conditions and climate change will look like the past. that s how we designed the rules by which we operate. our water resources are sensitive to climate. but our systems are sensitive to the way we manage what we build. we have to think not just about the,hydrology, but also management. as chuck said, we spend billions of billions of dollars building a very sophisticated system in the west united states and it s complicated and let s test it. draw down the river 25 feet and see if our models are right. there s a lot of things we can do with models without physically doing it. there s compelling scientific evidence that posted challenges to our water systems. unfortunately, there s pretty seri ....

United States , Santa Clara Valley , Central Valley , Colorado Springs , United Arab Emirates , Sport Land , District Of Columbia , Gulf States , Dave Erickson , Jarrod Hudson , Pa Leo ,

SFGTV2 July 28, 2010



coleague of mine did on impacts of changes on colorado river. we looked at climate general circulation models from hypo thetic there s a lot of information and this is a small piece of that. this shows frequency and volume of uncontrolled spills which is basically meaning floods. these are percent changes of flow on,x factors. 10, five, ten, twenty percent changes on flows. those are plausible in colorado. the,y axis is number of years in which we get plugs out of records. 78 years. there are two things to catch from this. one, is first of all, the vulnerability of the relative moderate increase of flow in the colorado. a ten percent increase in flow. changes the number of years with uncontrolled spills, floods, from six out of 78 in the data case to 16 out of 78 years some more than doubles the ten percent increase, more than doubles the years you have uncontrolled spills and different colors, blue is little spills and most are red the big ones. sorry the smaller one. ....

United States , Santa Clara Valley , Central Valley , Colorado Springs , Sport Land , District Of Columbia , Dave Erickson , Jarrod Hudson , Pa Leo ,

SFGTV2 July 21, 2010



the room so can t kick me out. the governor proposed two new surface reservoirs in california and the large part of the back up justification was issue of climate change and the terrible impact on storage. people are not doing to believe this, not opposed to new damages but i m apposed to amdams. i think it s a great way to evaluate new,dams or possibilities for them in california it s not good enough reason to build them and that s an important distinction. ironically we re having this same debate in nuclear power. climate change is a great thing to open the debate for nuclear power but by itself, not a good argument to build new nuclear power plants. there s economics, basic global problems, things that have not disperiod. climate change is a new justification for doing assessment but not necessarily an argument for doing certain large investments and building things and we have to be careful about building infrastructure for the wrong reasons. i won t say anymore a ....

United States , Santa Clara Valley , Central Valley , Colorado Springs , Sport Land , District Of Columbia , Dave Erickson , Jarrod Hudson , Pa Leo ,