Global warming or not, we humans are having a serious (and negative) impact on the ecosystem. Whether you believe in 1,500 or 25,000 year cycles, the desertification caused by humans in places (that I've seen) like Haiti, the encroaching Sahel/Sahara, and the depletion of the Aral Sea in Russia, the depletion of the water table in the Western US, clear cutting of forests in Africa, the Amazon and Western Canada...to name a few, cannot be good....and may be irreversible. These are real...and have nothing to do with global warming in the short term.
The pollution in the industrialised world
does have a lasting and negative impact. 30, 40, 50 years ago how many people had allergies or asthma?...and today?
If you believe in market forces, then true costs should be approapriately and fairly attributed. Not just for production but proper disposal and environmental impact. Then we would see a different type of car, of house, of cities, (maybe even different hull construction of sailboats?) I'm not concerned for myself as much as I am for my kids and eventual grandkids. Is'nt that the real issue?
As a kid our scout troup had a saying: "When you go into the woods, leave the place better than how you found it." I try and teach my kids the same values.
