Other than the obvious matters of scale that the other commenters have already pointed out, Earth's insides are full of heavy radioactive elements that are cons

Other than the obvious matters of scale that the other commenters have already pointed out, Earth's insides are full of heavy radioactive elements that are constantly pumping heat out. That said, a Longtermist startup focused on wrapping blankets around volcanos/geozits to save our atmosphere would certainly bring some levity to the news.