The IPCC released a hugely important scientific report this week. However, in this episode, I would like to talk about biodiversity instead, and in particular, biodiversity loss in the oceans.  On climate change, it's crystal clear that what we desperately need is action because the evidence is all around us. However, we rarely talk about action to counter biodiversity loss. Yet, the mutually reinforcing nature of climate change and biodiversity loss means that satisfactorily resolving either issue requires consideration of the other, and action: In the real world, the multiple impacts of climate change everywhere increasingly add to the enormous human pressure on biodiversity loss, which to put it bluntly, is about how we’re wiping out, or certainly trying to wipe out, pretty much everything on Earth, from trees to fish to insects to birds to mammals and more. Much more.