Some key facts on solar energy highlight its significant potential in resolving the climate change crisis:
- The Sun has sufficient helium mass to provide the Earth with energy for another five billion years. It emits enough energy to power humankind for an entire year in 1/816,000th of a second!
- The Earth receives only one half of one billionth of the Sun's radiant energy, but in just a few days it gets as much heat and light as could be produced by burning all the oil, coal and wood on the planet.
- Worldwide, some two billion people are still without electricity. For these populations it is more economically viable to install solar panels than to extend established electricity grids.
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