What Are The Renewable Sources of Energy

The most common form of renewable sources of energy are:

-  Solar
-  Wind
-  Water
-  Biomass
-  Geothermal

It is a pity that the politicians start to embrace renewable energy sources only when there are strong economic drivers such as the recent high oil price when it hit US$140 per barrel (before it came crashing back to the US$40 level)

It is time the world start harnessing the power of these renewable sources of energy.