One thing that makes me think some...is the lack of rainfall the last few years where I live. I've seen some articles on how Australia is feeling the wrath of little rainfall big time.I'm not a specialist in global warming...but beyond a doubt some regions are turning upside down with either warming..or little rain. Being I admire a good looking vegetable garden...and care about our lakes..makes me think alot on this.Having whole communities go through big changes is an eye opener in itself. I don't think there is nothing to stop this effect...I think even the Earth itself even without our help is making its way to a big change...Did we cause this..or help it along?...Trying to fix this..is like trying to control the weather...(auuugh). Do you think there are plans on trying to use the oceans salt water..and convert it in the future?...Australia has to have something on the drawing board to make the means....Conservation is just a temporary fix maybe.... Ok..just my thoughts..