More and more people on Earth = nailed-on environmental catastrophe. Yes? We talk to Alistair Currie from Population Matters to find out.Dashedly thorny issue, this. Isn't the real issue how much of a mess rich people are making of the planet, not how many poor people there are? Is talking about population inherently racist? And short of nuclear war, what could anyone nice realistically hope to be done about it anyway?In our candid chat, Alistair takes all of that - and more - head on.Sustainababble is your friendly environment podcast, out weekly. Theme music by the legendary Dicky Moore – @dickymoo. Sustainababble logo by the splendid Arthur Stovell.Available on iTunes, Acast, Soundcloud & all those types of things, or at sustainababble.fish. Visit us at @thebabblewagon and at Facebook.com/sustainababble. Email us at [email protected].