I’ll ignore the 
response for the onlookers and bite anyway
No, I’m not going to “magically” solve anything. Overpopulation is a malthusian reactionary myth and often two steps away from claiming that the poors have too many babies.
The reason why the environment is being destroyed is because of capitalism. It’s simply not profitable for the people in charge to switch for cleaner types of energy or to look for any solutions whatsoever. The fact that you think the solution to this is not communism, but that everyone should die, is telling. Another comrade has put it better than I can:
The United States, for example, is 4% of the World’s population but still uses 25% of the world’s resources annually. The United States outsources their pollution and their production to the third world, where the labor is cheapest due to imperialism, and then says “the third world is responsible for the climate change because of their carbon emissions! We need to cut down on the number of people!”
Which is often better than streaming anyway