_:genid1 "Free to use with credit to the original figure source."^^ . "shifts-in-plant-hardiness-zones" . "33.31"^^ . "Shifts in Plant Hardiness Zones"^^ . "NOAA"^^ . "The map on the left shows the change in Plant Hardiness Zones calculated from those based on the 1971-2000 climate to those based on the 1981-2010 climate. Even greater changes are projected over the next 30 years (right). (Figure source: NOAA)."^^ . _:genid1 . . . . . . . .