TLDR: Lots of flowering plants, moss and algae spreading. In March, temperatures near the south pole reached 39 °C above normal for three days in a row, hitting a peak of -10 °C (14 °F). Warm enough for researchers to walk around in shorts and shirtless....In Antarctica. Yeah were fucked.
I find it hilarious that they're like "It's 14F! Break out the shorts and T-shirts!" Meanwhile anyone anywhere else (except the Arctic regions) is like "This is pretty fucking cold".