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Category: sustainability

Australia seems to be leading the way in terms of wind power as well. 😃

It was a big week for South Australia last week. First, as we wrote at the time, the state reached 100 per cent solar power (of state demand) for the first time on Sunday, October 11.

Then, just a few days later, the state reached 100 per cent wind power (of state demand), on Thursday, October 15.

This was not the first time for wind, as it occurs reasonably often and for sometimes lengthy periods, but the fact that the two events occurred within days of the other are nevertheless important milestones. And although the transition to clean energy is far from complete, it does give some insight into what the state Liberal government’s target of “net 100 per cent renewables” by 2030 might look like.

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Leiden chemists Marc Koper and Ian McCrum have discovered that the degree to which a metal binds to the oxygen atom of water is decisive for how well the chemical conversion of water to molecular hydrogen takes place. This insight helps to develop better catalysts for the production of sustainable hydrogen, an important raw material for the chemical industry and the fuel needed for environmentally friendly hydrogen cars. Publication in Nature Energy.

For years there has been a heated debate in the literature: how to speed up the electrochemical production of on platinum electrodes in an alkaline environment? Chemist Ian McCrum watched from the sidelines and concluded that part of the debate was caused by the fact that the debaters were looking at slightly different electrodes, making the results incomparable. Time to change that, McCrum thought, who was a LEaDing Fellow postdoc in the group of Professor Marc Koper at the time.

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A Tesla battery researcher showed updated test results pointing to batteries lasting over 15,000 cycles or the equivalent of over 2 million miles (3.5 million km) in an electric car.

Last year, we reported on Jeff Dahn and his lab, who are under contract to do battery research for Tesla, releasing an interesting paper that shows how the latest Li-ion battery technology can produce batteries that would last 1 million miles in electric vehicles.

In a new presentation, Dahn discussed updated test results from this new battery, which he hopes becomes the new standard Li-ion battery that new battery technologies benchmark themselves against.

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From Ted.com.

Biodiversity is the key to life on Earth and reviving our damaged planet, says ecologist Thomas Crowther. Sharing the inside story of his headline-making research on reforestation, which led to the UN’s viral Trillion Trees Campaign, Crowther introduces Restor: an expansive, informative platform built to enable anyone, anywhere to help restore the biodiversity of Earth’s ecosystems.

This talk was presented at an official TED conference, and was featured by our editors on the home page.

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NASA has awarded Intuitive Machines of Houston approximately $47 million to deliver a drill combined with a mass spectrometer to the Moon by December 2022 under the agency’s Commercial Lunar Payload Services initiative. The delivery of the Polar Resources Ice Mining Experiment known as PRIME-1 will help NASA search for ice at the Moon’s South Pole and, for the first time, harvest ice from below the surface.

“We continue to rapidly select vendors from our pool of CLPS vendors to land payloads on the lunar surface, which exemplifies our work to integrate the ingenuity of commercial industry into our efforts at the Moon,” said NASA’s Associate Administrator for Science Thomas Zurbuchen. “The information we’ll gain from PRIME-1 and other science instruments and technology demonstrations we’re sending to the lunar surface will inform our Artemis missions with astronauts and help us better understand how we can build a sustainable lunar presence.”

PRIME-1 will land on the Moon and drill up to 3 feet (approximately 1 meter) below the surface. It will measure with a mass spectrometer how much ice in the sample is lost to sublimation as the ice turns from a solid to a vapor in the vacuum of the lunar environment. Versions of PRIME-1’s drill and the Mass Spectrometer Observing Lunar Operations, or MSolo, will also fly on VIPER, a mobile robot that also will search for ice at the lunar South Pole in 2023. NASA will land the first woman and next man on the Moon’s South Pole the following year.

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A peer-reviewed study by scientists at the Environmental Working Group estimates that more than 200 million Americans could have the toxic fluorinated chemicals known as PFAS in their drinking water at a concentration of 1 part per trillion, or ppt, or higher. Independent scientific studies have recommended a safe level for PFAS in drinking water of 1 ppt, a standard that is endorsed by EWG.

The study, published today in the journal Environmental Science & Technology Letters, analyzed publicly accessible drinking testing results from the Environmental Protection Agency and U.S. Geological Survey, as well as state testing by Colorado, Kentucky, Michigan, New Hampshire, New Jersey, North Carolina and Rhode Island.

“We know drinking water is a major source of exposure of these toxic chemicals,” said Olga Naidenko, Ph.D., vice president for science investigations at EWG and a co-author of the new study. “This new paper shows that PFAS pollution is affecting even more Americans than we previously estimated. PFAS are likely detectable in all major water supplies in the U.S., almost certainly in all that use surface water.”

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