Quote:
Originally Posted by basjoos
If the climate is getting warmer, how come we can't grow oranges as far north as they could in the late 1800's? In Mark Twain's ' Life on the Mississippi', published in the 1880's, he describes Natchez as the furtherest north place along the Mississippi where they can grow oranges outside without protection and that from that point on south orange trees were commonly seen growing
They might be able to diddle with temperature databases to try to prove warming or the lack thereof, but they can't change the references in classic literature describing locations where frost sensitive crops were being grown at the time it was written.
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Nothing to do with temperature,
Americans generally no longer consume "fridgid weather" oranges, the coldest weather a sweet orange can tolerate is 5 F but it's full of seeds, (one common variety is Changa after winterizing) tarter more bitter varieties can tolerate even colder, historically people would eat these varieties but now big, seedless sweet and easy to peel are expected.
Those types of oranges aren't cold ready.