The Arctic is rapidly warming, as this map shows. You can make your own maps like this with the Climate Reanlyzer.
Climate reanalyzer is an amazing resource for making weather and climate maps. Made by Sean Birkel at the University of Maine.
Here are other urls to sites I find useful/interesting:
https://climateanalytics.org/tools/
https://crt-climate-explorer.nemac.org
https://www.strava.com/heatmap
https://datascienceprograms.com/learn/how-data-science-can-help-fight-climate-change/
This is a great video to explain CO2 concentrations over the last ~1,000,000 years