Top Climate Stories Of 2020; Searching For Elves In Iceland

Scientific American senior editor Mark Fischetti joins us to tick through some of the most monumental climate news of the year that's coming to a close. And, when Here & Now spent a week in Iceland covering environmental issues last year, we also heard about elves everywhere we went. So for Christmas, we're bringing back our visit to Iceland's elf region, and of course, its Elf School.