Recently a friend of the Cornwall Alliance wrote us saying, I saw a very concerning rise claimed for the Great Lakes surface temps—not tenths of a degree but closer to 10. We worry for first time in my 7 decades about migration into Minnesota of poisonous species, death of favorite tree species, etc. What are the actual data regarding warming---whether of the air or of the waters---of the Great Lakes area? For the last 10 years I have been consulting with U.S. grain growing interests, … [Read more...]