Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News Editorials & Other Articles General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

Environment & Energy

(38,170 posts)

2. I very much remember saying the same thing about 400 ppm.

Sun Apr 5, 2026, 09:32 PM

Apr 5

Shit, I remember doing it about 380.

My quadratic model - simple as it is - estimates 500 ppm "by 2045."

It's all very ugly.

Edit history

Please sign in to view edit histories.

0 members have recommended this reply (displayed in chronological order):

5 replies

= new reply since forum marked as read

Highlight:

New Weekly CO2 Concentration Record Set at the Mauna Loa Observatory, 431.73 ppm [View all] NNadir Apr 5 OP

I very much remember saying the same thing about 400 ppm. NNadir Apr 5 #2

Death, taxes, and climate collapse. NNadir Monday #4

Each year would be even worse if we gave up on renewable energy thought crime Monday #5