4 ms·
Energy no object, it's a matter of harvesting it and dissapating the wasted heat. After all, the sun send more energy to the earth in one hour than we use in a
by kiba 15y ago
Energy no object, it's a matter of harvesting it and dissapating the wasted heat.
After all, the sun send more energy to the earth in one hour than we use in an entire year as humanity.
- adamc 15y agoMmm, that's kind of hand-waving away the hard part. In practice, that has been hard enough that energy generation is an issue.
- AkThhhpppt 15y agoThere is the slight issue that no matter what energy source we use, we need to reduce energy growth. Postulating a meagre 2.3% growth in energy use forever, we'll get the surface temperature of Earth to the boiling point of water in 450 years. Source http://physics.ucsd.edu/do-the-math/2011/07/galactic-scale-energy/ http://physics.ucsd.edu/do-the-math/2011/07/galactic-scale-e...
- kragen 15y agoYou can refrigerate the Earth. You don't even have to refrigerate it; approximately the entire sky except for the Sun is a few degrees above absolute zero, so you just have to increase your radiative coupling to it --- effectively putting cooling fins on the Earth. Or you could use the energy somewhere besides on Earth.