General winter defeated the nazis in Russia first go round.
Climate - truthful information about climate, related activism and politics.
Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:

How much each change to the atmosphere has warmed the world:

Recommended actions to cut greenhouse gas emissions in the near future:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.
Greenland is amazing. I went to Qaqortoq a few years ago, and the people may be the friendliest I have ever met.
One day a local dude offered to take me to a great climbing spot. We took his boat, and on the way there we came across another small boat with a mother and her son, who waved us over. They then proceeded to hand us half of the salmon and cod they had just caught, and when I tried to modestly refuse, the mother told me "If your village had a great big apple tree, wouldn't you share the fruits with your guests?".
Lovely people, who my ancestors have treated like shit. They don't deserve to be caught up in this imperialistic mess, just as they are getting their footing to become independent.