The last thing you would associate with coal is cleanliness: After all, this black sedimentary rock has been covered by dirt for hundreds of millions of years. Made up of a whole mess of carbons, nitrates, sulphur and other impurities, coal is all that is left of the plants that grew in a time before [...]

Everyone has heard of solar and wind technology by now. But it does not ordinarily occur to people that they are standing on top of an immense core full of another form of power. It is a privilege to see hot lava slowly oozing its way to the ocean in areas where one can do [...]

The sun supports almost all life on earth. Plants have harnessed the sun’s rays for millions of years. Reptiles need to ‘charge up’ in the sun before they have enough energy to do anything. It is about time we really started taking more advantage of the sun ourselves.

Bright Source’s “Power Tower” pilot plant.
(Photo: Bright Source [...]