and clouds are made of.......
water vapor is a phase of a liquid not a gas.
what negative effects does water vapor have on the planet (aside from cloud cover)? I mean we should take god to court for making clouds....
really this is the argument? cant have everything.
We as human beings put out more CO2 than anything on this planet.
We should stop breathing.
A couple stipulations first:
1. I don't want to turn this into another global climate change debate.
2. I'm not a believer in the scientific case for global climate change.
That said, water vapor is indeed a
gas. It is in fact the gaseous phase of water.
Water vapor also happens to be the most common
greenhouse gas in our atmosphere. A greenhouse gas is one that absorbs and emits energy in the infrared spectrum, thereby causing the earth to warm.
If we conclude that CO2 is a pollutant due to its greenhouse gas properties, it's only logical that we would deem human produced water vapor to also be a pollutant since it has similar greenhouse properties.
So, my original comment was intended to point out that hydrogen powered vehicles do in fact have emissions, and those emissions may be considered by some to be "pollution". And by the way, we haven't even talked about what happens in the production of the hydrogen that goes in the car in the first place. I'm not sure either of those facts are commonly recognized by many that believe hydrogen is the answer to the world's problems.
So, as you say, we can't have everything.