Earth

Greenland's Melting Ice Raised Global Sea Level By 2.2mm In Two Months (theguardian.com) 185

An anonymous reader quotes a report from The Guardian: Last year's summer was so warm that it helped trigger the loss of 600 billion tons of ice from Greenland -- enough to raise global sea levels by 2.2mm in just two months, new research has found. Unlike the retreat of sea ice, the loss of land-based glaciers directly causes the seas to rise, imperiling coastal cities and towns around the world. Scientists have calculated that Greenland's enormous ice sheet lost an average of 268 billion tons of ice between 2002 and 2019 -- less than half of what was shed last summer. By contrast, Los Angeles county, which has more than 10 million residents, consumes 1 billion tons of water a year.

"We knew this past summer had been particularly warm in Greenland, melting every corner of the ice sheet, but the numbers are enormous," said Isabella Velicogna, a professor of Earth system science at University of California Irvine and lead author of the new study, which drew upon measurements taken by Nasa's Gravity Recovery and Climate Experiment (Grace) satellite mission and its upgraded successor, Grace Follow-On. "In Antarctica, the mass loss in the west proceeds unabated, which is very bad news for sea level rise," Velicogna said. "But we also observe a mass gain in the Atlantic sector of east Antarctica caused by an increase in snowfall, which helps mitigate the enormous increase in mass loss that we've seen in the last two decades in other parts of the continent."

Cellphones

A Slashdotter's Take On a Way To Use Smartphones To Defeat the Coronavirus Pandemic 221

Longtime Slashdot reader dbart writes: With the near ubiquitous use of smartphones in America, it's sensible to seize upon this resource to help with the coronavirus pandemic. Here's my take on a way to use smartphones to deal with the pandemic:

America does not currently have a good coronavirus test -- but they are in development. Once a test is available there should be a smartphone app ready to deploy immediately. The app should work like this: A person would be tested for the virus at a testing station and the results of the test would be entered into the app's database. The person could then go about their business, such as going back to work. Upon arriving at the place of work, the person would bring up the app on their smartphone. The app would display some information to identify the subject that was tested along with a barcode. The employer would then scan in the barcode with the app on the employer's phone which will check with the central database and report back the results of their coronavirus test and the recency of the test. The employer would decide whether to allow the person into the workplace. This could similarly be used to safely allow entry to a restaurant, airplane, theater, sporting event, etc. -- thus getting the economy functioning again.

I've only presented a rough sketch of my idea about this above and there's many nuances to how this should work. It's obvious that everyone should be tested frequently for this to be effective. This would require testing on a massive scale, but considering the damage happening to the American economy, such massive testing could easily be justified. A capability as described above would get the American economy restarted at the soonest possible time and would allow society to function until a vaccine is available. It would also be a very valuable asset to epidemiological investigators. If an app was designed with enough forethought it could be deployed internationally. I'm hoping to get not just a Slashdot conversation but a larger conversation started about the use of technology to defeat this virus. Perhaps there's a Slashdotter with the skillsets to make this happen who would like to take this on. If anyone has a contact at the CDC please forward this post to them to insure that technological solutions such as this are being considered.
Medicine

Risky Hack Could Double Access To Ventilators As Coronavirus Peaks 77

An anonymous reader quotes a report from Motherboard: An emergency medicine physician says she and a colleague invented a way to connect four patients to a single ventilator, a hack that could significantly increase the capacity of overburdened hospitals during the coronavirus pandemic. Doctors Greg Neyman and Charelene Irvin Babcock published a pilot study of the technique in Academic Emergency Medicine in 2006. Babock is now an emergency medicine physician at a hospital in Detroit, Michigan and posted a YouTube video on March 14 describing the technique.

The technique is remarkably simple. "Four sets of standard ventilator tubing were connected to a single ventilator via two flow splitters," the study said. "Each flow splitter was constructed of three Briggs T-Tubes which included connection adapters with the valves removed." In Babock's video, she said the adapters were 22mm in size. Basically, any kind of T-shaped tube can be adapted to extend the ventilator to more than one patient. Babock's video has gone viral, and she told Motherboard in a phone interview that she put together the four way adapter set in her YouTube video in 15 minutes using supplies her hospital already had. In an interview with Motherboard, Babcock said that actually using it on coronavirus patients is a tough call, but a potentially life-saving one in a last-resort situation.
"It's only been done in test lungs," she said over the phone. "But it's probably better than nothing in dire circumstances. We don't know how bad it's gonna get. [Italy] is so overwhelmed with people that will die without ventilators and they don't have enough ventilators. Sometimes trying something almost MacGyverish is better than doing nothing."
The Courts

Ex-Uber Engineer Pleads Guilty To Stealing Trade Secrets From Google (cnet.com) 19

Anthony Levandowski, former Google engineer and a pioneer of self-driving car tech, agreed to plead guilty Thursday to stealing trade secrets from the internet giant. CNET reports: Levandowski left Google in 2016 to start his own self-driving truck company, which was quickly acquired by Uber for $680 million. These actions set off a chain of events that led to Google's autonomous vehicle unit, Waymo, suing Uber over alleged theft of self-driving car trade secrets. That lawsuit settled in February 2018 with Uber agreeing to pay Waymo $245 million. The prosecutors indicted Levandowski in August in a suit that involves 33 counts of theft and attempted theft of trade secrets from Google. The activities allegedly took place as he prepared to leave the search giant to build out Uber's self-driving car operation.

Levandowski pleaded guilty to one count of trade secret theft in an agreement in which federal prosecutors agree to drop the remaining charges, according to a filing with the U.S. District Court of the Northern District of California. The plea carries a maximum sentence of 10 years in prison and a maximum fine of $250,000. "I downloaded these files with the intent to use them for my own personal benefit, and I understand that I was not authorized to take the files for this purpose," Levandowski said in the filing. No sentencing date has yet been scheduled.

Media

Amazon Prime Video To Slow Streaming To Fight Broadband Overload (theguardian.com) 43

Amazon's Prime Video, the world's second-largest streaming service, is set to join YouTube and Netflix in reducing the speed of its streams across Europe to make sure broadband networks can handle the surge in usage as millions are confined to their homes. From a report: It is understood that the BBC is discussing whether to implement similar temporary measures for the iPlayer, which has the largest UK audience of any streaming service, along with Disney+, which launches across most of western Europe and the UK next week. An Amazon Prime Video spokesman said: "We support the need for careful management of telecom services to ensure they can handle the increased internet demand, with so many people now at home full-time due to Covid-19. Prime Video is working with local authorities and internet service providers where needed to help mitigate any network congestion, including in Europe, where we've already begun the effort to reduce streaming bitrates while maintaining a quality streaming experience for our customers."
Education

MIT Has Made the Decision To No Longer Consider the SAT Subject Tests (mitadmissions.org) 57

MIT's Stu Schmill, in a press release: I'm happy to announce our decision to discontinue the use of subject tests starting with the 2020-21 admissions cycle for first-year and transfer admissions (for students entering MIT in 2021 and beyond). We made this decision after considerable study, in consultation with our faculty policy committee. We believe this decision will improve access for students applying to MIT.
Security

Windows, Ubuntu, macOS, VirtualBox Fall at Pwn2Own Hacking Contest (zdnet.com) 26

The 2020 spring edition of the Pwn2Own hacking contest has come to a close today. This year's winner is Team Fluoroacetate -- made up of security researchers Amat Cama and Richard Zhu -- who won the contest after accumulating nine points across the two-day competition, which was just enough to extend their dominance and win their fourth tournament in a row. From a report: But this year's edition was a notable event for another reason. While the spring edition of the Pwn2Own hacking contest takes place at the CanSecWest cyber-security conference, held each spring in Vancouver, Canada, this year was different. Due to the ongoing coronavirus (COVID-19) outbreak and travel restrictions imposed in many countries around the globe, many security researchers couldn't attend or weren't willing to travel to Vancouver and potentially put their health at risk. Instead, this year's Pwn2Own edition has become the first-ever hacking contest that has been hosted in a virtual setting. Participants sent exploits to Pwn2Own organizers in advance, who ran the code during a live stream with all participants present. During the competition's two-day schedule, six teams managed to hack apps and operating systems like Windows, macOS, Ubuntu, Safari, Adobe Reader, and Oracle VirtualBox. All bugs exploited during the contest were immediately reported to their respective companies.
United States

New York Governor Announces '100% Workforce Reduction' for Non-essential Services (techcrunch.com) 127

In a press conference today, New York State Governor Andrew Cuomo announced orders for residents to stay at home amid rising COVID-19 concerns. The governor was careful to avoid terms like "shelter in place" during the otherwise typically blunt presser, but noted a "100% workforce reduction," with the exclusion of services deemed essential. The rules take effect Sunday evening. From a report: "This is the most drastic action we can take," Cuomo said, following yesterday's lead of California Governor Gavin Newsom. Cuomo went on to note that things like "solitary exercise" would be excluded from the ruling, but the state will be aggressive in making sure that citizens adhere to the rules. Mass transit will remain operational and restaurants, food delivery and banks will remain in service. Cuomo wasn't able to answer a question about laundry services, but the state will make a full list of exceptions available this afternoon. The state is asking ISPs to increase data bandwidth at no charge to address increased needs from users actively social distancing. "These are legal provisions," Cuomo said. "They will be enforced." The state will issue fines for those "non-essential" businesses that fail to abide by the decision. "I am not kidding about this," he added. There is currently no plan in place to penalize individuals for gathering socially, and exceptions will be included to allow people to leave their homes for physical and mental health purposes.
Youtube

YouTube Goes SD Streaming by Default in Europe Due To COVID-19 (techcrunch.com) 52

YouTube has switched to standard definition streaming by default in Europe. From a report: We asked the company if it planned to do this yesterday, and today a spokeswoman confirmed the step. It's a temporary measure in response to calls by the European Commission for streaming platforms to help ease demand on Internet infrastructure during the coronavirus crisis. Users can still manually adjust video quality but defaults remain a powerful tool to influence overall outcomes.
Youtube

YouTube Now Highlights 'Authoritative' Coronavirus Coverage On its Homepage (mashable.com) 35

YouTube has launched a news shelf on its homepage dedicated to coronavirus coverage. From a report: The content will initially be available in 16 countries, and the company says it will expand it to more countries in the future. YouTube announced the news on Twitter without giving any further details, such as the exact list of countries or the list of news outlets that are included in the program.
United States

Coronavirus Disruption Risks Damaging the 2020 United States Census (economist.com) 90

An anonymous reader quotes a report from The Economist: When the 2020 United States census, scheduled for April 1st, was planned, the areas of most concern were mapped. They include places like Deep East Texas, an area of 10,000 square miles north-east of Houston with a population of roughly 385,000 people. In large parts of the region most people do not have internet access. Many live in places only accessible with four-wheel drives. Counting everybody in Deep East Texas was never going to be easy. Now it looks like it may be near impossible. "The coronavirus has certainly complicated matters," says Lonnie Hunt, the director of the Deep East Texas Council of Governments (detcog), an intergovernmental agency. To help ensure an accurate count, detcog had hired a dozen census coordinators to go out to community events -- sports matches, church services, school sports days -- with information to persuade people to send their returns in, and internet hotspots and iPads with which to do it on the spot. Most of those events are now being cancelled. With people staying indoors, they probably will not encounter any of the workers meant to explain to them the importance of the census and get them to fill it in. The virus may represent the biggest threat to the United States census in its 230-year history.

So far the Census Bureau has only made modest changes. On March 18th the agency announced that all field operations are to be suspended until April 1st. On other surveys officials will make phone calls instead of visits. It has asked administrators of "group quarters" -- institutions like nursing homes, prisons and college dormitories -- to "choose a way to count their residents that requires less in-person contact." But more radical adjustments may be needed. Terri Ann Lowenthal, a former director of the House committee that oversees the census, notes that the count takes ten years to plan, and "yet now the Census Bureau is being forced to make shifts basically on the fly." On March 17th Brazil announced it would delay its census by a year. American officials might have to consider that, too.

Cloud

NASA To Launch 247 Petabytes of Data Into AWS, But Forgot About Egress Costs Before Lift-Off 121

NASA needs 215 more petabytes of storage by the year 2025, and expects Amazon Web Services to provide the bulk of that capacity. However, the space agency didn't realize this would cost it plenty in cloud egress charges. As in, it will have to pay as scientists download its data. The Register reports: The data in question will come from NASA's Earth Science Data and Information System (ESDIS) program, which collects information from the many missions that observe our planet. NASA makes those readings available through the Earth Observing System Data and Information System (EOSDIS). To store all the data and run EOSDIS, NASA operates a dozen Distributed Active Archive Centers (DAACs) that provide pleasing redundancy. But NASA is tired of managing all that infrastructure, so in 2019, it picked AWS to host it all, and started migrating its records to the Amazon cloud as part of a project dubbed Earthdata Cloud. The first cut-over from on-premises storage to the cloud was planned for Q1 2020, with more to follow. The agency expects to transfer data off-premises for years to come.

NASA also knows that a torrent of petabytes is on the way. Some 15 imminent missions, such as the NASA-ISRO Synthetic Aperture Radar (NISAR) and the Surface Water and Ocean Topography (SWOT) satellites, are predicted to deliver more than 100 terabytes a day of data. We mention SWOT and NISAR because they'll be the first missions to dump data directly into Earthdata Cloud. The agency therefore projects that by 2025 it will have 247 petabytes to handle, rather more than the 32 it currently wrangles. NASA thinks this is all a great idea. And it will -- if NASA can afford to operate it. And that's a live question because a March audit report [PDF] from NASA's Inspector General noticed EOSDIS hadn't properly modeled what data egress charges would do to its cloudy plan.
NASA "has not yet determined which data sets will transition to Earthdata Cloud nor has it developed cost models based on operational experience and metrics for usage and egress," the Inspector General's Office wrote. "As a result, current cost projections may be lower than what will actually be necessary to cover future expenses and cloud adoption may become more expensive and difficult to manage."

"Collectively, this presents potential risks that scientific data may become less available to end users if NASA imposes limitations on the amount of data egress for cost control reasons."

Slashdot Top Deals