[Wisha Haddan H3]

Very interesting. I don't know if I would call it "debunked", but the paper sheds a lot of light on the process of global warming and really puts greenhouse emissions into perspective with other sources of climate change. Still, that's no reason to make cars less fuel efficient or more polluting overall. After all, if global warming occurs naturally, why add to the problem?

Besides, global warming is far from the only reason to make vehicles and factories more fuel efficient and less polluting. Poisons like carbon monoxide are still poisonous. The particulates in diesel and gas exhaust are known to cause or aggravate asthma and other respiratory diseases. There are good political arguments for fuel efficiency, like reducing dependence on foreign oil. Plus there are economic reasons like the high price of fuel, supply and demand fluctuations due to weather, terrorism and natural disasters.

etc, etc, etc