In wacky world news this episode… The biggest street parades and parties are underway – we’ll tell you where and why in our Mardi Gras explainer. We’ll also give you the low-down on diplomacy – what it means and why it matters – AND what it’s got to do (or not) with Donald Trump and the new world order. Big environment news with an innovative sponge that might help solve the world’s microplastic pollution problem. And, lost at sea… a couple deep sea creatures are showing up on the surface – you gotta listen to the end to find out which ones and where!