Sure sounds like an admission that the planet was MUCH Warmer thousands of years ago, and that we are slowly Returning to the level the planet WAS!!!
What did prehistoric Man do to Heat the Planet up before the Ice Age killed them off?
Diet heavy in beans.
Discovered FIRE???/snicker
Exactly!! I suspect they did more roasting, fire cult watching, burning of infidels, burning of unblievers, agnostics, athiests, burning of vast tracts of lands to get more space to grow their hallucinogins, ...they warmed the planet at least to the 2,000 foot levels before the smoke was so thick it cooled the planet. Then the volcanoes became hyperactivve because all the people were rushing to the seas to determine if the sea was rising and that tilted the earth so the oceans sloshed out and equilibrium was obtained. See? Simple.
This is so bloody obvious you have to wonder how any thinking adult (not that the writers for Newsweek are thinking adults!) could possibly reach any other conclusion.