The main reason that the earth experiences highest temperatures in
the subtropics in the northern hemisphere rather than at the equator
is :
1. Subtropical areas tend to have less cloud cover than equatorial areas.
2. Subtropical areas have longer day hours in the summer than the equatorial.
3. Subtropical areas have an enhanced "green house effect" compared to equatorial areas.
4. Subtropical areas are nearer to the oceanic areas than the equatorial locations.
