Environmentalist Quotes and aphorisms about most John Muir John Muir Greta Thunburg ,, The most common criticism I get is that I'm being manipulated and you shouldn't use children in pol... Greta Thunburg Greta Thunburg Paul Hawken Paul Hawken ,, When cattle ranchers clear rain forests to raise beef to sell to fast-food chains that make hamburg... Paul Hawken Paul Hawken Luther Burbank