I’ve often written about how astonishingly little of the Earth’s surface needs to be covered in a solar collecting technology, e.g., solar thermal, in order to provide 100% of the world’s energy needs. Linked above is a wonderful graphic that makes this clear.
Don’t get me wrong: the task of deploying that much solar thermal is not something that we can do overnight, but it sure provides something to think about. We receive 6000 times more energy from the sun every day than we need to supply all our energy needs. It sure seems a shame that we can’t come up with a way of making this happen, and that, as a consequence, we keep depleting our ever-shrinking supply of fossil fuels, while destroying our natural environment.