"In fact water vapour is one of the largest components of Greenhouse gas at 30% . If we are contributing to that percentage then the cry should be against taking hot showers, wave pulls at water parks or those water misiting systems at outdoor malls in the summer time! Can you see the protests now!" - Frank75
I've known that for a long time, and often wondered over the years how environmentalists think (if, indeed they dwell on the matter) that would effect the environment if hydrogen fuel cell powered cars were to become a reality. One of the things people in favor of them say with great zeal is "they don't put off ANY pollutants, just water vapor".
AATW:
Although I was making a joke you are absolutely right. What is it about us as humans that we think we are so able to control our environment. In the sorcerer's apprentice a small task turns into a catastrophe. Many of the pro Kyoto and IPCC supporters must face up to the reality on some level, even if it is while they sleep, that they are opening a Pandora's box!
Speaking of water.......
Katrina has scared the hell out of a lot of people, and we are hearing everything from God's wrath to Global warming as the reasons for the catastrophe. However the major catastrophe was the failure to strengthen the levies on one hand and on the practical side, situating a major US city on the river delta of one of the largest Rivers on the planet. When New Orleans was founded, flooding took place all along the Mississippi River. Flood management throughout the heartleand has limited the flood risks there and so what happened with Katrina was a disaster waiting to happen.
Much of the human cost from these "Natural" disasters is a direct result from locating large human populations in areas that were formerly uninhabited, not from SUV's.
For example Florida's population was just over 500,000 at the turn of the last century and much of that population was in the Northern part of the state. By 2000 that population had grown to almost 14,000,000! That is 28 times growth in a century. The US population in 1900 was 76,000,000 and now is almost 4 times (281,000,000) that amount according to census data for 2000 (These are all census figures being used)
Encouraging the earths populations and governments to be stewards as opposed to masters or manipulators of our environment will be the wisest course, not waving a magic wand.
Frank75