Throughout the world, it is the lack of available fresh water that is threatening the existence of mankind; not Global Warming. Much of the world's water sources are either contaminated or on the verge of completely running dry.
In the United States, the water tables are dropping and the underground water sources are being contaminated by toxins from our landfills. We have many serious droughts throughout regions of our country and the world. We are dirtying our water supplies at a faster rate than nature can clean and replenishment them.
So logically simple, water is the key to our existence. We need it directly to survive and indirectly so that we grow and produce our food.
I just find it unconscionable that for decades our government has literally ignored this problem.