The clean energy revolution from national grid looks at the huge progress we're all making towards cleaner energy to help save our pla. We are going to be looking at one of the big tions that researchers have been grappling with since the very beginning of the pandemic, where did the sars cove to virus come from? Now we're expecting some news from the w h o team who went to china a few weeks back to try and get a bit of a handle on this question. And we've got a vaxcine high listeners. I'm in the south london basement once more, but i'm joined on the line by noah baker and amy maxman.