Spyke

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linux

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Bram Moolenaar Passed Away

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My entire life has vim key bindings. My window manager and browser all have vim key bindings. I work in vim. I write my shopping lists in vim.

I really can't overstate how ingrained vim is in my day to day life. Bram had a big impact.

climate

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I Study Climate Change. The Data Is Telling Us Something New.

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It's insane.

The thermodynamic minimum amount of energy needed to extract CO2 at 450 ppm is 120 kWh per tonne. Current experimental carbon capture plants run at about 5 % efficiency. If we assume we can double their efficiency and can magically produce as many plants as we need, to remove 20 Gt of CO2 per year (half our emissions) we would need 24,000 TWh of energy per year.

That is the entirety of the world's electricity production. To remove half our emissions.

Carbon capture is a non-runner.

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Quick oneliner ffmpg help

It's a bit long for a one-liner, but this should work.

for f in /media/johann/5461-000B/DCIM/100MEDIA/*.AVI; do num=${f%.AVI}; num=${num##*IMAG}; ffmpeg -i "$f" -ss 00:00:00 -t 00:00:20 "~/Public/240321/240321_$num.avi"; rm "$f"; done

This num=${f%.AVI}; num=${num##*IMAG}; extracts the number from the video filename. To make sure it's not deleting anything it shouldn't, you also might want to run it with rm -i "$f"

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[climate reanalyzer] Monthly Sea Surface Temperature

The monthly series doesn't quite capture what has been happening this year.

Since March of this year, the North Atlantic has been consistantly half a degree above last year and a full degree above the 1982-2011 average temperature. Temperature records have been broken every day since March.

We are in completely new territory now. Normally El Niño increases wind shear in the Atlantic, which makes hurricane formation more difficult. This increase in sea surface temperature may offset that. Things are going to be unpredictable.

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Emissions are no longer following the worst case scenario

While the title of their article is correct, it's not exactly the full story. Human emissions as accounted for by the Global Carbon Project have leveled off but atmospheric CO2 and CH4 are still rising. (And in CH4's case, accelerating rapidly)

While the leveling off is a big improvement, we are a very, very long way from fixing this and feedbacks are kicking in that may well make it impossible.

And just for reference, here are the RCPs out to 2100:

If you're interested, you can get RCPs here and observations from NOAA.