Protecting Parkland Works

Just take a look at this mind blowing satellite image:Sidi Toui National Park, in the southern half of Tunisia, close to the Libyan border, viewed by the Enhanced Thematic Mapper Plus (ETM+) instrument on NASA's Landsat 7 satellite on December 13, 1999. Native vegetation can be seen returning inside the borders of this protected park (approx. 7 kilometers wide), established in 1993 to protect the region against desertification. The effects of continued agriculture, overgrazing and drought can be seen on the surrounding arid landscape. (NASA/Jesse Allen/Landsat,USGS)

The image is part of another great series at The Big Picture on the Earth as seen from above.