two examples is city of,cataloma, looking at their ecological, and fuel and chemical cost to treat that water and your valley in australia did extensive analysis and evaluation where they evaluated in terms of the possible greenhouse emissions effect associated with the actual creation of the building materials that they will later be putting in the ground. so i think ÷ >> i've been part of climate studies for ten or fifteen years now and, our understanding of what in the future regardless of all these outcomes that dan showed yesterday, we're going to see high flows much higher than before what we called the future dry pool, relatively cool scenarios and warmer wet scenario. these things going to occur much higher than now. as far as droughts go and less tear does not know this. we're working with the high ydraulics and the california central models to do all kinds of draught scenarios hound to switch our water from ground water flow and how this is going to drop and how wells require much more electricity and things going to shift if we don't take these things in to account. we live i