Some solutions are already slowly happening. If you've noticed, there's a trend going on with restaurants, fast-food places, companies, etc. that deal with meat in that they're heavily pushing meat alternatives. I'm seeing a lot specifically for burgers nowadays i.e. the Impossible Whopper, it's at a point where is beginning to pick up steam in the mainstream. It'll take a while but this move to choosing meat alternatives more often and occasionally having real meat is what will help us out a lot with climate change. The future is partial vegetarianism people.
Very truthfull and unpopular opinion,we are with too many to keep eating meat like crazy.