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Environment & Energy

(36,279 posts)

2. We had a daily reading over 430 on March 7 and again on March 10.

Mon Mar 24, 2025, 12:07 PM

Mar 2025

The 7th was 430.60 ppm; the 10th 430.19.

I'm fairly certain we'll see weekly averages above this by May, if not sooner.

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March 23 2025 - On The Very Edge Of 430 Parts Per Million [View all] hatrack Mar 2025 OP

Absolutely! SheltieLover Mar 2025 #3

We had a daily reading over 430 on March 7 and again on March 10. NNadir Mar 2025 #2

Oh, interesting - didn't know it had arrived as early as that . . . hatrack Mar 2025 #5

I check it most every day. I'll miss it when King Eloon shuts it. NNadir Mar 2025 #7

Took me a while to figure out what the OP was about Wednesdays Mar 2025 #4

When daily tracking began in 1958, it was 315 ppm . . . hatrack Mar 2025 #6

This message was self-deleted by its author ZDU Mar 2025 #8

This message was self-deleted by its author ZDU Mar 2025 #9

It has not been this high for 800,000 years at least IbogaProject Mar 2025 #10

Here is a site by a Rutgers professor and another Academic from Australia IbogaProject Mar 2025 #11