Letters to the editor
By Science News, 16:17 PM June 4, 2013
Erin Wayman’s article “Faint young sun” (SN: 5/4/13, p. 30), about how the early Earth stayed warm enough for liquid water, made me wonder about the effect of the temperature of the planet itself. A hotter core, thinner crust, more volcanism — wouldn’t those factors in addition to atmospheric influences affect surface temperature?
Virginia Bruce, via e-mail
“For the present-day climate, internal heat provides only 0.02 percent of the energy input to the climate system,” says Geo...
Source URL: https://www.sciencenews.org/article/letters-editor-6