Dr Keith Walker @SteelFolk@social.cleverlibre.org

Food waste is responsible for at least *6%* of global greenhouse gas emissions.

We can change that. Right now.
https://ourworldindata.org/food-waste-emissions #ClimateChange #food

Born in 1914, Hedy Lamarr was a famous American actress who pioneered the technology that would lead to WiFi, GPS, cell phones & Bluetooth communication.

Lamarr was brilliant. Among many fascinating inventions, she developed a new communication system with composer George Antheil that used “frequency hopping” among radio waves.

Once called the “most beautiful woman in the world," Lamarr is now remembered as "the mother of Wi-Fi."

https://www.smithsonianmag.com/smithsonian-institution/thank-world-war-ii-era-film-star-your-wi-fi-180971584/ #science #history #HistoryRemix

Today is the Day of Remembrance for the Japanese American community. 81 years ago today, when I was just a boy of four, FDR signed Executive Order 9066, setting in motion the evacuation of people of Japanese descent from the West Coast and our long years of internment inside ten barbed wire prison camps.

We must never let such a thing happen again in America, and and we must strive everywhere to prevent the forced relocation and mass incarceration of innocent people. #NeverForget #NeverAgain

**LAUNCH** of #ClimateDiary
Hashtag

I've been thinking for a while that it would be good to have a collective Climate Diary (along the lines of the Sussex Mass Observation project): people from across the world recording and sharing everyday observations, experiences, thoughts, feelings relating to the #ClimateCrisis

I would like to try out simply using a #Hashtag - #ClimateDiary - here on #Mastodon to create this and I would like to invite you all to join in and share widely! 1/2

Dr. Patricia Era Bath, 1981. Inventor of the Laserphaco Probe, used worldwide in eye surgery to remove cataracts. Bath founded the American Institute for the Prevention of Blindness.

She restored sight to millions of people suffering from cataracts. #BlackHistoryMonth #BlackMastodon

When climate dommer is a judge ...
Today in Berlin in a process against a climate activist the judge says: 'Dinosaurs went extinct. Humans will anyway, I am firmly convinced of that. It can't be prevented, they are too stupid for that.'
... we have a problem.
---
RT @carla_hinrichs_
Ich heute vor Gericht:
Ich möchte das Leben auf der Erde schützen.

Richter daraufhin:
Kakerlaken auch? Die Dinos sind auch ausgestorben. Der Mensch…
https://twitter.com/carla_hinrichs_/status/1626269547165634562

Researchers at Caltech, my alma mater, have found by a careful look at one of his notebooks that Leonardo da Vinci had devised experiments showing gravity is a form of acceleration ... 300 yrs b4 Einstein!

He even modeled the gravitational constant to ~97% accuracy. https://bit.ly/3xow9HP

Genius!

Proof of reserves is proof of nothing. Full reserve crypto doesn't exist. https://www.coppolacomment.com/2023/02/proof-of-reserves-is-proof-of-nothing.html

Binance and its stablecoins are being devoured by the SEC's serpents. The SEC has ordered Pacos to stop minting its BUSD, leaving Binance with a painful dilemma about its version of the same coin. https://www.coppolacomment.com/2023/02/binance-and-its-stablecoins.html

Private aviation is a symbol of climate injustice, accessible by a few elites and 50x more polluting than trains. The rich are burning the planet while the poorest are suffering the consequences. People are resisting, with love and for life. #MakeThemPay #LossAndDamage (2/3)

To my Mastodonians...

Happy Pale Blue Dot day! 💕

Very proud to say that I was there, helping to make it happen.

Read my piece on how the Voyager Pale Blue Dot, taken on Valentine's Day of 1990, came to be. https://bit.ly/3RZ1Rok

Hear ye! Hear ye! 🎺🎈

Scott Tremaine, renowned celestial dynamicist & a founder (along w/ my thesis advisor Peter Goldreich) of the field of planetary rings, has written a textbook on Dynamics of Planetary Systems. At my request of some time ago, he added a discussion of the definition of a planet.

And what did he find?

Pluto is NOT a planet !!!

[If you have Scott's book, the criterion can be found in figure 9.2 on page 450, in equation form on p 451.]

Rejoice! Reason has prevailed.

Friends, in addition to using alt text yourselves, I need you to keep spreading the message about it, telling your friends and followers to use it. I've just been seeing far fewer toots about it than I used to, and blind people can't be the only ones talking about this. Thanks!

Doubtless you've heard that "we all get the same 24 hours in the day." Of course it's not true: rich people and poor people experience very different demands on their time. The richer you are, the more your time is your own - not only are many systems arranged with your convenience in mind, but you also command the social power to do something about systems that abuse your time.

1/

You know the ol' question: What could possibly go wrong? Well, read on!

The researchers said, 'We never really thought about it.'

That'S the problem w/ uncritical acceptance of shiny 'new technologies'.

https://bit.ly/3jOHL3s

♫ psycho killer, cat cassette ♫

When a car is repaired after a crash, the GDP goes up.

When a fruit or vegetable is grown only to be thrown out by a supermarket as food waste, the GDP goes up.

When you replace a phone that still works because of planned obsolescence, the GDP goes up.

When you throw out a perfectly good coat because it's no longer fashionable, and buy a new one in this season's style, the GDP goes up.

When a bridge has to be replaced because it wasn't built right, the GDP goes up.

When a piece of packaging is manufactured only to be thrown away straight away, the GDP goes up.

When a site needs to be decontaminated because chemicals weren't stored correctly, the GDP goes up.

In each case, society has no more usable wealth than it would have had if the car didn't crash, the vegetable wasn't grown, the phone wasn't replaced, the old coat was still being worn, there was less packaging, or the chemicals were stored correctly. Yet the GDP goes up.

Meanwhile, most of the wealth that is generated ends up in the top one percent's pockets.

The truth is that GDP isn't a useful measurement. It's just a convenient one.

#economics #politics #gdp #auspol #ukpol

Can we predict if atmospheric CO2 grows faster or slower than what is expected from emissions' growth?

Yes, by assimilating observational data into an #ESM, we gain a predictive skill of 5 years for the air–sea CO2 flux, and 2 years for the air–land CO2 flux and atmospheric carbon growth rate.

Find out more on how we predict the global carbon cycle and evaluate modeled atmospheric CO2 in our new study:

https://esd.copernicus.org/articles/14/101/2023/

led by @HongmeiLi at my group @MPI_Meteo

#ilyinaScience

I have just submitted evidence to the House of Lords asking them to stop the government's attempt to curb the right to strike. Can you join in too? #SupportAmendment1 @organisehq https://tinyurl.com/23yoledm