Some people are starting to die from foreign diseases and there is so much pollution that some of the countries are having to migrate or use gas masks. Much less animals are around and there is a very large number of factories. Water levels are getting pretty high.
Will it work?
Reducing carbon dioxide emission will help to slow down the greenhouse effect where heat from the sun is reflected back onto the Earth because of some gasses int eh atmosphere, mostly produced by us. If oxygen levels go up, we will have more oxygen and will be able to breathe better. less meat being eaten means less deforestation and so less carbon dioxide.