>>10549298Imagine the mass of all humans on this planet, comparing from when there were none.
Let's say every person weighs 65kg on average. 65*7000000000 = 455 000 000 000kg of pure human mass just living and consuming. That's quite a bit.
Now every person needs on average 1500 kcal per day to survive. Similar equation: 1500*7000000000 = 10 500 000 000 000 kcal of heat energy being released _every day_ from just people being alive and eating. Then add the cows/cattle humans have for food production + their farts. That becomes a whole lot more as well.
Now this immense amount of heat production did not exist even 100 years ago. And this is not including all the production and tools and excess consumption every human has. Aaaaand on top of this, add the greenhouse effect (which undoubtedly is a thing, without it we'd freeze to death). AAAaaAAaAaAAaaaAAAnd add the deforestation all around the world.
So even if the greenhouse gasses isn't the only thing, humans have an insanely large effect on the planet. No: it's not all because of co2. Anyone who believe so is a fucking moron. But humans makes the planet warmer, by sheer numbers alone if nothing else. Cramp 10 people into a 30 m2 room and you'll notice it gets quite warm.
