Looks like it's just felt pen, but the mark of being retarded will be permanent.

https://www.reddit.com/r/dataisbeautiful/comments/etcdkg/oc_nasas_global_temperature_graph_as_a_tattoo/

what if he predicts temps go down by 2030-2040?

https://www.naturalnews.com/wp-content/uploads/sites/91/2017/05/TIME-magazine-global-cooling-April-1977.jpg

He's optimistic that we've got another 50 years lol.

I miss