As a result, we have more agriculture, more vegetation and more precipitation in these areas.

The vegetation index is a reflection of photosynthesis.

The greenhouse-like environment also provides for lush vegetation to help with air quality and provide food sources.

The belt of vegetation that crosses Africa below the Sahara is very dark because most of the sunlight is absorbed by plants for photosynthesis.

And without the cover of vegetation, land becomes more reflective, heating up the air above it, and potentially contributing to global warming.