Climate Change Reflected in Hardiness Zone Maps
Woodrow Wilson of the Arbor Day Foundation:
What the hardiness zone map clearly shows is that the climate has warmed, certainly since 1990 when the last USDA map was updated.
Kim Kaplan, spokesperson for the USDA, on the climate change reflected on the maps:
It’s not the purpose of the map. It’s not good evidence. It’s not a matter of [whether] there is or isn’t climate change; it’s just that this isn’t a good argument.
Map courtesy of Arbor Day Foundation.
