1 post tagged “global warming”
From the National Arbor Day Foundation:
This animation illustrates the general warming that has occurred from 1990 to 2006. Click the play button to see how the hardiness zones have changed.
From the National Arbor Day Foundation:
This animation illustrates the general warming that has occurred from 1990 to 2006. Click the play button to see how the hardiness zones have changed.
