The government’s colorful map of planting zones, most often seen on the back of seed packets, is changing to illustrate a hotter 21st century. The new map is said to reflect better mapping technology and temperature data.
The government’s colorful map of planting zones, most often seen on the back of seed packets, is changing to illustrate a hotter 21st century. The new map is said to reflect better mapping technology and temperature data.
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