Tree growth rings disprove that the earth is warmer now than during Roman times and or even 1000 years ago.
On Thu, 19 Jul 2012 07:43:39 -0500, "HeyBub"
And *IF* CO2 contributes to global warming, the benefits of increased CO2
may outweight the hazards. For example, the growing season(s) could extend -
Canada may be able to get three wheat crops instead of two. Second, far more
untimely deaths can be attributed to cold than heat. Next, places like
Minnesota and upstate New York may become habitable.
More growing season *if* water levels remain available to sustain that
growing season. Like many places in the US we Canadians are
experiencing drought like conditions in many areas.
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