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dendroica.bsky.social
Retired design engineer, solar researcher, and data analyst. Now a full time birder and hiker, continuing his research on earth science and astrophysics. Will brake for Prog Rock. On the evil site, @25_cycle https://evidence-basedscience.com/
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For the second week in a row, we've shattered the weekly CO2 record as measured in Mauna Loa Observatory. 430.19- we've never been above 430 for a week before, we'll probably hit it at least 3 more times this year and will probably surpass it.

submitted 9 days ago • 0 comments

Thursday was busy birding and hiking so I didn't get around to NOAA and NASA. March 2025 for both, slightly cooler (+0.03) than 2024. When we add ERA5, NOAA NCEP, JRA-3Q (the only one showing slightly higher) this trend is not only consistent but the "spread" high to low is under 0.12°C.

submitted 18 days ago • 0 comments

ERA5 Land only, 1940-2025(mar) 60 year change is +2.1°C 15 year change is +0.93°C I know we're only supposed to talk about the entire planet but last time I'd checked, almost all of us live on the land.

submitted 20 days ago • 0 comments

An important climate paper is Etminan, et al, 2016 detailing climate forcings for CO2, CH4 and N2O. There are tiny discrepancies based on feedbacks where each molecule shares frequencies, I've calculated the molecular forcing ratios. 1/2 agupubs.onlinelibrary.wiley.com/doi/full/10....

submitted 23 days ago • 1 comment

Solar output update, comparing cycles 24 & 25 to date. NASA will launch TSIS-2 satellite in Oct., hope it'll be more reliable and they'll provide support. TSIS is the best NASA has had but it's starting to age - Cycle 25 is about 1 part in 6000 hotter than 24 lasp.colorado.edu/data/tsis/ts...

submitted 29 days ago • 0 comments

Don't read this if you're squeamish... horrific. Tesla is eventually going to be hit by a massive class action suit or wrongful death and the brand will be even more tarnished. Engineering nightmare, did not execute simple fail-safe. oaklandside.org/2025/03/18/c...

submitted 39 days ago • 1 comment

Maybe this AI garbage isn't working? "Viking 6 and Viking 7 spacecraft The shortest manned round trip to Mars was achieved by the Viking 6 and Viking 7 spacecraft, which took 155 and 128 days respectively"

submitted 40 days ago • 0 comments

Has anyone noticed that TSLA is in freefall again in pre-market trading? As of 8:45AM on the 18th, down over $8.50 at just under $229.40 a share.

submitted 41 days ago • 0 comments

The data was coming in the last several days, there was no doubt we would shatter the record the only question was by how much. Keeling curve for the 10th week of 2025, an average of 429.04 parts per million CO2 at the Mauna Loa Observatory

submitted 44 days ago • 0 comments

Need to have this said, Elon Musk made himself out to be this great hero of humanity, that's why he wants to build electric cars, that's why he wants to establish a base on Mars but all of his actions show he's really a psychopath. We can go through a few famous issues but I'll cut to the chase 1

submitted 48 days ago • 2 comments

ERA5 Sea Surface 365 day temperature update. It's been slowly coming off it's spectacular high in July, roughly 1/4°C above it's 2016 record high. The oceans have a much higher thermal load than the atmosphere, about 1100X... it doesn't "prefer" to change rapidly. sites.ecmwf.int/data/climate...

submitted 48 days ago • 0 comments

Today's rant: Frump had a chance to right the markets but instead of being smart and say "don't worry, this is a temporary issue and we're going to right the ship immediately" he set fire to the sails and threw the oars overboard. Markets don't want to hear, "people will suffer."

submitted 49 days ago • 0 comments

What does X and our tariffs with Mexico and Canada have in common? It's on again, off again, on again, off again.

submitted 49 days ago • 0 comments

I'm sorry if this is getting old - triple ice extent lows today. If there's anything reassuring, it's almost a guarantee at sometime this year we won't be at record low global ice extent...

submitted 49 days ago • 0 comments

Cycle 25 and 24 comparisons to this portion of their solar cycles, 25 remains well out in front it's almost impossible even if it goes "dark" from now to the end, for it to have less sunspot activity than 24.

submitted 51 days ago • 0 comments