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ScienceDaily: Earth & Climate News |
| Sharks may be closer to the city than you think, new study finds Posted: 16 Jun 2022 04:47 PM PDT The world's coastlines are rapidly urbanizing, but how this increased human presence may impact species living in the ocean is not fully understood. Scientists tracked the movements of three shark species, bull, nurse and great hammerhead, in relation to the city of Miami. Given the chemical, light, and noise pollution emanating from the coastal metropolis, researchers expected sharks to avoid areas close to the city, but that's not what they found. |
| Posted: 16 Jun 2022 11:27 AM PDT A new population of polar bears documented on the southeast coast of Greenland use glacier ice to survive despite limited access to sea ice. This small, genetically distinct group of polar bears could be important to the future of the species in a warming world. |
| Humans responsible for over 90% of world's oil slicks Posted: 16 Jun 2022 11:27 AM PDT Scientists mapping oil pollution across the Earth's oceans have found that more than 90% of chronic oil slicks come from human sources, a much higher proportion than previously estimated. |
| Once seen as fleeting, a new solar tech proves its lasting power Posted: 16 Jun 2022 11:27 AM PDT Researchers have developed the first perovskite solar cell with a commercially viable lifetime, marking a major milestone for an emerging class of renewable energy technology. The team projects their device can perform above industry standards for around 30 years, far more than the 20 years used as a threshold for viability for solar cells. |
| Repeated hurricane exposure linked to adverse psychological symptoms Posted: 16 Jun 2022 10:52 AM PDT Repeated exposure to hurricanes, whether direct, indirect or media-based, is linked to adverse psychological symptoms and may be associated with increased mental health problems, according to a new study. |
| Off-season cattle grazing to help control fire danger from invasive cheatgrass Posted: 16 Jun 2022 10:52 AM PDT Cheatgrass, an invasive annual grass that has invaded Nevada rangelands, is responsible for much of the increasing wildfire danger in the Intermountain West. However, scientists have discovered that fire danger can be reduced through the application of targeted cattle grazing in the dormant growing season by attracting the cattle with stations containing protein feed supplements. |
| Research extends the lifetime of molecules in organic flow batteries to practical values Posted: 16 Jun 2022 09:16 AM PDT Researchers have developed a new method to dramatically extend the lifetime of organic aqueous flow batteries, improving the commercial viability of a technology that has the potential to safely and inexpensively store energy from renewable sources such as wind and solar. |
| Who wants to be a billionaire? Most don't -- which is good news for the planet Posted: 16 Jun 2022 09:15 AM PDT A new study busts the long-held economic belief that humans are all motivated to want more and more, which could have important implications for sustainability policies. |
| Wildfire smoke exposure negatively impacts dairy cow health Posted: 16 Jun 2022 07:19 AM PDT Increasing frequency and size of wildfires in the United States over the past several decades affect everything from human life and health to air quality, biodiversity, and land use. The US dairy industry is not exempt from these effects. The Western states, where wildfires are especially prevalent, are home to more than two million dairy cows that produce more than 25% of the nation's milk. A new report examines how dairy cattle in the Western United States may be affected by unique air pollutants from wildfire smoke. |
| Can a parasitic wasp save your fruit crops? Posted: 16 Jun 2022 07:19 AM PDT Researchers developed a toolkit for investigating the molecular mechanisms governing the parasitic nature of the wasp species Asobara japonica. They first used DNA and RNA-sequencing-based techniques to identify genes controlling the wasp's body color, as well as the putative toxic components in its venom. They used RNA interference to block expression of the body color gene, darkening its appearance. Future experiments will use this technique to better understand the venom components' functions. |
| Global warming is threatening the health of people in Britain Posted: 16 Jun 2022 07:19 AM PDT Heatwaves are making more people in rural areas of England severely ill today than they were in the 1980s, according to new research. |
| Co-existing mangrove-coral habitats have a new global classification system Posted: 15 Jun 2022 11:57 AM PDT By coexisting more closely with mangroves, tropical coral species may have found an alternative habitat where they can thrive in the face of climate change. |
| Inadequate charging networks could thwart EV adoption goals Posted: 15 Jun 2022 07:28 AM PDT Encouraging the large-scale adoption of EVs is seen by many governments as a key pillar of efforts to build a carbon-neutral economy. But failing to properly plan a resilient network of charging stations could be an Achilles' heel that undermines efforts to encourage car owners to switch to electric vehicles. |
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