Yes, I know it's hard to believe for many, but humans are capable of measuring the temperature
But for sure the solution isn't communism
Discussion
No solution is needed, the earth has been warmer that this in the past. As long as we learn to live in a more generally sustainable manner, and reduce pollution (plastics, pesticides, heavy metals etc.), we will be just fine.... Until the meteor hits...
The general temperature of the climate increasing is not the issue, it is the rate of change that will cause problems. As humans we’re very adaptable but not all species are and there are a lot of interrelated food webs. If one of the species that can’t adapt quickly enough are bees or other pollinators we’ll be pretty screwed.