Blog

Page 9580

Aug 21, 2018

Ecosystems are getting greener in the Arctic

Posted by in categories: climatology, sustainability

In recent decades, scientists have noted a surge in Arctic plant growth as a symptom of climate change. But without observations showing exactly when and where vegetation has bloomed as the world’s coldest areas warm, it’s difficult to predict how vegetation will respond to future warming. Now, researchers at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) and UC Berkeley have developed a new approach that may paint a more accurate picture of Arctic vegetation and our climate’s recent past – and future.

In a study published online Aug. 20 in Nature Climate Change, the researchers used satellite images taken over the past 30 years to track – down to a pixel representing approximately 25 square miles – the ebb and flow of in cold areas of the northern hemisphere, such as Alaska, the Arctic region of Canada, and the Tibetan Plateau.

The 30-year historic satellite data used in the study were collected by the National Oceanic and Atmospheric Administration’s Advanced Very High Resolution Radiometer. The data was processed by Boston University, and is hosted on NEX – the NASA Earth Exchange data archive.

Read more

Aug 21, 2018

Researchers are developing fast-charging solid-state batteries

Posted by in categories: climatology, materials

Solid-state batteries contain no liquid parts that could leak or catch fire. For this reason, they do not require cooling, and are considered to be much safer, more reliable, and longer lasting than traditional lithium-ion batteries. Juelich scientists have now introduced a new concept that allows currents up to 10 times greater during charging and discharging than previously described in the literature.

Low current is considered one of the biggest hurdles in the development of solid-state batteries because the batteries take a relatively long time to charge, usually about 10 to 12 hours in the case of a fully discharged . The new cell type that Jülich scientists have designed, however, takes less than an hour to recharge.

“With the concepts described to date, only very small charge and discharge currents were possible due to problems at the internal solid-state interfaces. This is where our concept based on a favourable combination of materials comes into play, and we have already patented it,” explains Dr. Hermann Tempel, group leader at the Juelich Institute for Energy and Climate Research (IEK-9).

Read more

Aug 21, 2018

New study identifies strategies in US climate litigation

Posted by in categories: climatology, health, policy, sustainability

The courts have played a central role in climate change policy, starting with a landmark Supreme Court case that led to the mandatory regulation of greenhouse gases in the United States. How do the courts address climate cases today? Who wins, who loses and what kinds of strategies make a difference in the courtroom?

Researchers at the George Washington University (GW) have published a study in Nature Climate Change that for the first time analyzes all U.S climate change lawsuits over a 26-year period.

“This first-of-a-kind study outlines the types of climate change lawsuits that are more likely to win or lose, and why,” said lead author Sabrina McCormick, Ph.D., MA, an Associate Professor of Environmental and Occupational Health at GW’s Milken Institute School of Public Health (Milken Institute SPH). “Efforts to affect U.S. should consider current trends in the courtroom.”

Read more

Aug 21, 2018

Rethinking the Mars terraforming debate

Posted by in categories: engineering, environmental, space

In late July, Bruce Jakosky and Christopher Edwards published a paper titled “Inventory of CO2 available for terraforming Mars,” which was sponsored by NASA. The paper analyzed the amount of volatiles, primarily carbon dioxide (CO2), on or in Mars currently, and concluded reasonably that there are not enough volatiles available on Mars to terraform it sufficiently for a person to not need a pressure suit. Jakosky is the principal investigator for MAVEN, the NASA Mars orbiter studying the planet’s atmosphere. He and his co-author wrote what is technically an accurate paper, in spite of what was an existing mild controversy over the amount of some volatiles in the soil and regolith of Mars.

Read more

Aug 21, 2018

The Life Extensionist’s Guide to Logical Fallacies

Posted by in category: life extension

A handy guide to logical fallacies for life extensionists.


When debating life extension, or debating in general, it may happen that participants commit logical fallacies—that is, their arguments contain logically invalid reasoning. In practice, this often means that people incorrectly come to certain conclusions that do not actually follow from the premises; if they appear to follow, it’s indeed because fallacious reasoning was used.

Logical fallacies can be tough to spot, both for the people committing them and for the people listening; rejuvenation advocates would therefore benefit from familiarizing with common fallacies committed during debates about life extension so that they will both be able to detect them in other people’s arguments and avoid committing any themselves.

Continue reading “The Life Extensionist’s Guide to Logical Fallacies” »

Aug 20, 2018

Beijing Enjoys the Bluest Skies in a Decade

Posted by in category: environmental

Beijing residents have been breathing some of the cleanest air in a decade as they begin to reap the benefits of China’s anti-smog push.

Read more

Aug 20, 2018

Space Hotels

Posted by in category: space

Would you stay in a space hotel?

Read more

Aug 20, 2018

DISTANT DREAM — Reverse

Posted by in category: entertainment

Distant Dream (Poland), “Reverse” (feat. Stel Andre) from the album “It All Starts From Pieces” (2017), Instrumental Post rock | Post metal.

• Official Distant Dream band links
https://distantdream.bandcamp.com/
https://www.facebook.com/distantdreammusic/

Continue reading “DISTANT DREAM — Reverse” »

Aug 20, 2018

Stunning NASA Image Lets You Watch the Sun Explode in Real Time

Posted by in category: space

The surface of the sun is a roiling tangle of magnetism, heat and light, stunning new images reveal.

Read more

Aug 20, 2018

Light from ancient quasars helps confirm quantum entanglement

Posted by in categories: particle physics, quantum physics

Last year, physicists at MIT, the University of Vienna, and elsewhere provided strong support for quantum entanglement, the seemingly far-out idea that two particles, no matter how distant from each other in space and time, can be inextricably linked, in a way that defies the rules of classical physics.

Take, for instance, two particles sitting on opposite edges of the universe. If they are truly entangled, then according to the theory of quantum mechanics their physical properties should be related in such a way that any measurement made on one particle should instantly convey information about any future measurement outcome of the other particle—correlations that Einstein skeptically saw as “spooky action at a distance.”

In the 1960s, the physicist John Bell calculated a theoretical limit beyond which such correlations must have a quantum, rather than a classical, explanation.

Continue reading “Light from ancient quasars helps confirm quantum entanglement” »