100-Year-Old Frost Maps Show How Climate Change Has Shifted the Growing Season in the U.S.

"Average Dates of Last Killing Frost in Spring," William Reed Gardner, Charles Franklin Brooks, and F.J. Marschner (1916).
"Average Dates of Last Killing Frost in Spring," William Reed Gardner, Charles Franklin Brooks, and F.J. Marschner (1916)



 "Average Dates of First Killing Frost in Fall," William Reed Gardner, Charles Franklin Brooks, and F.J. Marschner (1916).
"Average Dates of First Killing Frost in Fall," William Reed Gardner, Charles Franklin Brooks, and F.J. Marschner (1916).


Via slate.com
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Alex E

Ecoclimax is defined by Odum (1969) as the culmination state after a succession in a stabilized ecosystem in which maximum biomass (or high information content) and symbiotic function among organisms is kept per unit of available energy flow.