if you want to take an integrated approach, the most powerful way you can do this is to systematically reduce your own personal consumption while increasing your self-reliance. Anita McKone and I have mapped out a fifteen-year strategy for doing this in ‘The Flame Tree Project to Save Life on Earth’. You might also consider signing the online pledge of ‘The People’s Charter to Create a Nonviolent World’ which obviously includes nonviolence towards our fellow species.
One of the hidden tragedies of modern human existence is that we have been terrorized into believing that we are not personally responsible. See ‘The Delusion “I Am Not Responsible”‘. For a fuller explanation, see ‘Why Violence?’ and ‘Fearless Psychology and Fearful Psychology: Principles and Practice’. It isn’t true but few people feel powerful enough to make a difference.
And every time you decide to do nothing and to leave it to someone else, you demonstrate why no-one else should do anything either.