There’s a lot we don’t know about ocean CO₂ removal

There’s a lot we don’t know about ocean CO₂ removal

Enlarge (credit: National Academy of Sciences)

It’s clear from climate science that we need to drop greenhouse gas emissions to zero as quickly as possible. But it’s also clear from our slow progress that we could use some help with those emissions. One thing that can help is carbon dioxide removal, as it allows us to reach net-zero emissions even as some difficult-to-solve emissions remain.

Carbon removal on land—including obvious techniques like reforestation—gets a lot of attention. Carbon removal in the ocean, on the other hand, has seemed a bit pie-in-the-sky, even though the ocean already soaks up more CO2 than land ecosystems do. A new National Academies of Sciences, Engineering, and Medicine report takes up the challenge of outlining what we would need to learn to make some theoretical techniques for boosting ocean uptake a reality—or to rule them out. The report follows 2015 and 2019 reports that set the stage for carbon dioxide removal science more broadly.

Boosting productivity

The report’s goal is to provide some direction, both for scientists designing studies and for funders (like the National Science Foundation) setting priorities. The report is the work of a sizable group of scientists organized by the National Academies, with funding provided by a sponsorship from the ClimateWorks Foundation.

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How to Use the .github Repository

GitHub has many special repositories, like the README in your profile. You can get creative and add all sorts of helpful information there. Another special repository is the .github repository. This might remind you of the .github directory in repositories which house workflows, issue templates, pull request templates, funding information,

OSHA probes Amazon warehouse where workers died with no tornado shelter

A first responder walks among the wreckage of a damaged Amazon warehouse on December 11, 2021, in Edwardsville, Illinois.

Enlarge / A first responder walks among the wreckage of a damaged Amazon warehouse on December 11, 2021, in Edwardsville, Illinois. (credit: Michael B. Thomas/Getty Images)

The federal Occupational Safety and Health Administration announced yesterday that it is opening an investigation into the deaths of six workers at an Amazon warehouse in Illinois that was struck by a massive tornado, one of more than 40 that ripped through the region over the weekend.

Nearly half of the 1.1 million-square-foot building was demolished as winds as high as 150 mph (240 kph) tore through the structure. “The west-facing walls of the warehouse collapsed inward, which was followed by multiple structural failures as the tornado moved through the complex,” the National Weather Service said.

The first warnings came relatively early, at 8:06 pm and again at 8:16 pm, when the NWS issued tornado warnings. A “warning” means that a twister has been sighted or radar data suggests one will form. The NWS says that the tornado formed at 8:28 pm as an EF-0, the lowest on the scale, and quickly intensified to an EF-3 as it moved across Interstate 255. More than 20 minutes elapsed between the first warning and touchdown, over double the average lead time.

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New PS4 homebrew exploit points to similar PS5 hacks to come

Sony's PlayStation 4.

Enlarge / Sony’s PlayStation 4. (credit: Andrew Cunningham)

Hackers have released details of a new exploit that allows homebrew and custom firmware to be installed on PS4 consoles running relatively recent firmware. What’s more, the specifics of the exploit suggest similar homebrew capabilities may soon be available on some versions of the PlayStation 5.

The new exploit builds on a known error in the way that the PS4’s WebKit implementation utilizes font-faces. That exploit on the PS4 was publicized in October as a proof of concept after a similar error was found in Apple’s Safari WebKit implementation in September.

On the PS4, the full exploit can now be triggered by visiting a website with specially formatted JavaScript via the PS4 web browser, allowing the system to run kernel-level code that bypasses the console’s usual security protections. From there, the exploit can read files from an inserted USB stick and install homebrew software, including existing custom PS4 firmware.

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YouTube TV warns it may lose all Disney-owned channels amid contract dispute

YouTube app icon on a TV screen.

Enlarge (credit: Getty Images | Chris McGrath )

YouTube TV yesterday warned that it could lose all Disney-owned channels after Friday because of a contract dispute and said it will temporarily reduce its price by $15 a month if that happens.

“We’re now in negotiations with Disney to continue distributing their content on YouTube TV so you can continue watching everything from your favorite teams on ESPN to The Bachelor to Good Morning America. Our deal expires on Friday, December 17, and we haven’t been able to reach an equitable agreement yet, so we wanted to give you an early heads up so that you can understand your choices,” the Google-owned YouTube wrote in a blog post.

“[I]f we are unable to reach a deal by Friday, the Disney-owned channels will no longer be available on YouTube TV and we will decrease our monthly price by $15, from $64.99 to $49.99 (while this content remains off our platform),” the blog post said. YouTube noted that users can pause or cancel their YouTube TV subscriptions at any time and subscribe to the Disney Bundle for $13.99 a month.

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