It is, therefore, clear that individuals must take responsibility for the environment. Otherwise it will soon be too late. And we and the next generation will suffer serious consequences.
Is it true that the synonym for the word consequences is: repercussions?
They are close in meaning, and “repercussions” would work in this sentence. I personally feel that “consequences” is a better word here, but only for quite subtle reasons.
Can I say: Following?
Do you mean “the next generation will suffer serious following”? No, that does not make sense.