This week Ol's feeling mopey about the misery of trying to buy a flat in London. Shouldn't we just build lots of new houses everywhere? Also, celebrity buffoon will.i.am's been at the babble-aid, teaming up with Coca-Cola & Harrods to sell recycled backpacks that cost... oh, just wait till Arabella tells you how much.Sustainababble is a weekly podcast for and by greeny types who don’t really know what’s going on. It comes out every Monday.Music by Dicky Moore from Bearcraft.Available on iTunes, Stitcher, Soundcloud, and on the sustainababble website. Visit us at @thebabblewagon and at Facebook.com/sustainababble