After all ice caps have melted and the polar bears drown, and the coastal cities are all underwater, Al Gore will ride a spacecraft to the Moon or Mars and inhabit there and tell everyone I told you so...
Geography uses other subject in it's studies. Very close to geography are geophysics and geology. Geophysics studies quantitatively physical phenomena of the planet Earth, geology studies composition of soil rocks and their development through history. Geography uses biology, statistics, mathematics and other subjects in order to better describe the Earth.
Explanation:
1)walk/ use bikes=reducing CO2
2)use computers= saving forest
3)treat sewage= conserving fresh water