Figuring Germany at 357021 sq. km, and "1 degree" to raise the equivalent of a meter of water by 1 Kelvin, gives 1.5E18 J.
If I did my math right, that's the energy in a 400 megaton bomb, or 17 kg of antimatter. The US nuclear arsenal is about 2500 Mt.
I don't think you'll be able to distribute that much energy so uniformly. Almost certainly you'll end up with all of it dumped into the surface, with people, land, and cities burned to a crisp. Only a few people in mines or deep valleys might survive.
If I did my math right, that's the energy in a 400 megaton bomb, or 17 kg of antimatter. The US nuclear arsenal is about 2500 Mt.
I don't think you'll be able to distribute that much energy so uniformly. Almost certainly you'll end up with all of it dumped into the surface, with people, land, and cities burned to a crisp. Only a few people in mines or deep valleys might survive.