A Hazy Shade of Winter

"Once in a blue moon," writes Rebecca Stott, "new technologies become available that make it possible to open up ancient, long-shelved historical mysteries." Rebecca tells how modern science has explained the events of 536 AD when the sun 'disappeared' and a devastating pandemic followed. And she ponders what scientists - hundreds of years from now - will be able to tell about our current pandemic and our environmental crisis. Producer: Adele Armstrong