the world goes through natural hot and cold cycles. rise and fall of water levels, naturally occurring toxins and billions of tons are spit into the air by volcanoes... solar flair cycles affect our world too - and gravity sucks!
That is all our of our control, but we still can reduce our own toxic footprint.
we pour billions of tons of toxins into our air & water, plus drugs and toxins in our cattle, pork, and chix. (cattle/pig contribute more methane than human industry)
changes in human energy sources/infrastructural, life style and diet WILL reduce toxins in our environment
want to debate who benefits from "Global warming" and how corrupt the world is ... or do WE want to make small changes that will help our envelopment, and maybe even make a better one for our children or grandchildren.....
The only estimate I've read is that 2% of the increase in green house gases is directly attributable to human influence.
