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ScienceDaily: Earth & Climate News |
| Plastic pollution in ocean may harbor novel antibiotics Posted: 15 Jun 2022 06:13 PM PDT Plastic pollution in the ocean, which can support microbial communities, may serve as a source for novel antibiotics, according to a new student-led study conducted in collaboration with the Scripps Institution of Oceanography. |
| Inspired by palm trees, scientists develop hurricane-resilient wind turbines Posted: 15 Jun 2022 06:12 PM PDT New results from real-world tests of a downwind turbine could inform and improve the wind energy industry in a world with intensifying hurricanes and a greater demand for renewable energy. |
| Giving metal to microbes could reduce greenhouse gas Posted: 15 Jun 2022 04:21 PM PDT Collaborative research finds a lack of available metals may be responsible for more nitrous oxide than previously thought. |
| AI reveals scale of eelgrass vulnerability to warming, disease Posted: 15 Jun 2022 10:08 AM PDT A combination of ecological field methods and cutting-edge artificial intelligence has helped an interdisciplinary research group detect eelgrass wasting disease at nearly three dozen sites along a 1,700-mile stretch of the West Coast, from San Diego to southern Alaska. |
| Posted: 15 Jun 2022 08:32 AM PDT Higher exposure to air pollution is associated with higher functional brain connectivity among several brain regions in preadolescents, while exposure to traffic noise was not, according to a study. The findings also identify the first years of life as the most sensitive period of exposure to air pollution. |
| River belt discovery helps scientists understand ancient rivers Posted: 14 Jun 2022 03:41 PM PDT A researcher has come up with a rule that connects channel belts to river patterns, finding that, in general, the more channels a river has, the narrower its channel belt. Since the physics shaping rivers is the same over time and place, the rule should hold for ancient rivers and rivers on other planets, too. |
| Posted: 14 Jun 2022 01:44 PM PDT While researchers have speculated that the up to 50-foot-long whales choose shallow, coastal locations for lack of predators and warmer and calmer waters, a team of biologists recently uncovered a new potential motive. |
| A warming climate decreases microbial diversity Posted: 14 Jun 2022 01:44 PM PDT Researchers conducted an eight-year experiment that found that climate warming played a predominant role in shaping microbial biodiversity, with significant negative effect. |
| Rural areas near coast will bear the brunt of U.S. sea-level rise Posted: 14 Jun 2022 12:37 PM PDT A new analysis using highly detailed elevation maps of the Chesapeake Bay suggests that North America's extensive areas of low-lying rural land will allow coastal marshes to persist or even expand as salty water creeps upward into what are now forests and farmland. |
| Research clarifies hazards posed by harmful algal blooms Posted: 14 Jun 2022 11:15 AM PDT Research has shed new light on the hazards associated with harmful algal blooms such as one four years ago that fouled drinking water in Oregon's capital city of Salem. |
| Gravity-defying spike waves rewrite the rule book Posted: 14 Jun 2022 11:15 AM PDT Researchers studying wave breaking have found that axisymmetric 'spike waves' can far exceed limits that were previously thought to dictate the maximum height of ocean waves. |
| Companies’ use of renewable energy certificates masks inaction on carbon emissions Posted: 14 Jun 2022 11:15 AM PDT A new study argues that renewable energy certificates -- a market-based tool that certifies the bearer owns one megawatt hour of electricity produced from renewable energy sources -- generally do not reduce emissions and firms using them are overstating their climate mitigation claims. In one calculation, the researchers show how a sample of 115 companies between 2015 and 2019 reported a 31 per cent reduction in emissions. A closer analysis of that claim reveals that without including the purchase of ineffective RECs, the actual drop in emissions was roughly 10 per cent. |
| Study explores uncertainties in flood risk estimates Posted: 14 Jun 2022 11:15 AM PDT Flood frequency analysis is a technique used to estimate flood risk, providing statistics such as the '100-year flood' or '500-year flood' that are critical to infrastructure design, dam safety analysis, and flood mapping in flood-prone areas. But the method used to calculate these flood frequencies is due for an update, according to a new study. |
| Earliest record of wildfires provide insights to Earth's past vegetation and oxygen levels Posted: 14 Jun 2022 09:27 AM PDT While wildfires over recent years have raged across much of the western United States and pose significant hazards to wildlife and local populations, wildfires have been a long-standing part of Earth's systems without the influence of humans for hundreds of millions of years. |
| Right whales' survival rates plummet after severe injury from fishing gear Posted: 14 Jun 2022 09:27 AM PDT Most North Atlantic right whales that are severely injured in fishing gear entanglements die within three years, a study finds. Severely injured whales were up to eight times more likely to die than those with minor injuries, and only 44% of males and 33% of females with severe injuries survived longer than 36 months. Females that did survive had low birth rates and longer intervals between calving. |
| Double-layered catalyst generates more hydrogen Posted: 14 Jun 2022 09:27 AM PDT Engineers have developed a catalyst by adding a flat platinum interface to NiFe-layered double hydroxide (LDH). The new catalyst increases hydrogen production efficiency and displays 11.2 times higher activity than conventional catalysts. |
| Panthers now number one predator of white-tailed deer in Southwest Florida Posted: 14 Jun 2022 09:26 AM PDT A new study found Florida panthers are the No. 1 cause of mortality for white-tailed deer in Southwest Florida. The researchers set out to get a better picture of what factors most affect the survival of Florida's white-tailed deer, the most popular game species in the state and a key prey species for the Florida panther. |
| Cats' strange reactions to catnip make it a better insect repellent Posted: 14 Jun 2022 09:26 AM PDT Anyone who has seen a cat experience catnip knows that it makes them go a bit wild -- they rub in it, roll on it, chew it, and lick it aggressively. It is widely accepted that this plant, and its Asian counterpart, silvervine, have intoxicative properties, but this might not be the only reason that cats rub on and chew the plants so enthusiastically. Researchers have found that when cats damage catnip, much higher amounts of strong insect repellents are released, indicating that the cats' behavior protects them from pests. |
| Pioneering study shows climate played crucial role in changing location of ancient coral reefs Posted: 14 Jun 2022 09:26 AM PDT Prehistoric coral reefs dating back up to 250 million years extended much further away from the Earth's equator than today, new research has revealed. |
| New fire shelter prototypes could buy time for wildfire firefighters Posted: 14 Jun 2022 06:55 AM PDT Temperatures inside new wildfire shelter prototypes remained within survival limits for longer, and the shelters took longer to break open, compared with an industry standard. |
| Numbers and experience count in mongoose warfare Posted: 13 Jun 2022 12:06 PM PDT Strength in numbers and experienced individuals are both vital in mongoose warfare, new research shows. |
| New inherited retroviruses identified in the koala genome Posted: 13 Jun 2022 12:06 PM PDT Historic virus infections can be traced in vertebrate genomes. For millions of years, these genomes have been repositories for retroviruses that incorporated their code into germline cells and were inherited as endogenous retroviruses (ERVs). Researchers now provide new findings about retroviral establishment in the koala genome. |
| Scientists provide explanation for exceptional Tonga tsunami Posted: 13 Jun 2022 09:45 AM PDT Scientists say they have identified the exact mechanism responsible for the exceptional tsunami that spread quickly across the world after the colossal eruption of the Tonga volcano earlier this year. |
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