right, joining us right now to discuss his marine scientists and environmental entrepreneur and climate risk expert, dr. deborah brosnan. >> great to see you, doctor. so blue carbon, wonderful. so blue carbon. i mean i guess it's a new discovery. it's not a new ally, is it? it's just a new realisation of things that have been in place for a very long time. >> exactly. >> blue carbon is a new word for something that's been going on and we've been depending on for tens of thousands of years these coaston ecosystem's kelp forests, coaston marshes, mangroves, seagrass beds, literally pull carbon from out of the atmosphere and they turn it into grows so when you look at a mangrove tree or a coastal marsh, you're literally looking at living carbon. >> and they've been doing this forever. and for us and since