I used to be a huge fan of XKCD when he did funny, witty, educational and nerdy cartoons about IT and various scientific topics. I even bought his first book.
Unfortunately, he lives in California and I guess at some point the zombies broke into his house and ate his brains.
The day he announced that he was "with her", the quality of his cartoons dropped precipitously.
He even ended up producing this chart, which is pure climate alarmist propaganda:
He totally skips all the very warm periods of the past, he claims that the Medieval Warm Period only affected the northern hemisphere and wants the reader to believe in the ridiculous Mann hockey stick.
This is an accurate temperature chart based on Greenland ice cores:
"We live in the coldest period of the last 10.000 years", says glaciologist Jørgen Peder Steffensen as he takes us back in time to the Greenland icecores and reveals the secrets from the past.
This page provides links to more than 1200 scientific studies that document the Medieval Warm Period all over the planet - it was most definitely global and temperatures were significantly much warmer than now - without melting Siberian methane deposits and without harming any species. In fact, it was much easier to live with higher temperatures. Cold is the killer.