I wanted to learn more so i went looking for an article. Heres a pretty good write up. https://www.sciencealert.com/flowers-are-spreading-in-antarctica-as-summer-temperatures-soar

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.