ScienceDaily: Earth & Climate News |
| Researchers find tradeoff between water quality and emissions on the farm Posted: 27 Jan 2022 02:26 PM PST With water quality guidelines compelling more farmers to act on nitrogen loss, cover crops and split nitrogen applications are becoming more common in the Midwest. But new research shows these conservation practices may not provide environmental benefits across the board. |
| Coral skeleton formation rate determines resilience to acidifying oceans Posted: 27 Jan 2022 02:26 PM PST A new study has implications for predicting coral reef survival and developing mitigation strategies against having their bony skeletons weakened by ocean acidification. |
| New study improves understanding of Southern California’s intense winter rains Posted: 27 Jan 2022 02:26 PM PST New research looks to improve prediction of brief but intense rainstorms that can cause devastating flash floods and landslides. Intense rain associated with narrow cold-frontal rainbands may last only a few minutes at a particular location, yet the rain can cause catastrophic flash flooding, debris flows and landslides, and can occur along with tornadoes and severe thunderstorms. |
| Climate change and land use data to predict watershed impact Posted: 27 Jan 2022 11:16 AM PST Researchers studied the Chesapeake Bay watershed to evaluate the combined effects of changes to climate and land use on runoff and pollutants in a rapidly developing watershed that is a tributary to the bay. |
| After a wildfire, how does a town rebuild? Posted: 27 Jan 2022 11:15 AM PST The West sees destructive wildfires every year -- yet it hadn't seen anything like the Camp Fire. Three months after the most destructive wildfire in recent history, wildfire sociologists went to the devastated town of Paradise to learn how residents and town leaders were recovering. |
| Data from thousands of cameras confirms protected areas promote mammal diversity Posted: 27 Jan 2022 09:01 AM PST Researchers at UBC's faculty of forestry analyzed data from a global data set drawing from 8,671 camera trap stations spanning four continents. They found more mammal diversity in survey areas where habitat had a protected designation -- compared to forests and other wilderness areas that lacked that designation. |
| Plant pathologists collaborate to share knowledge on a growing threat to corn production Posted: 27 Jan 2022 08:43 AM PST A growing threat to corn around the world, tar spot has had a significant impact on United States corn production. To combat this growing threat, plant pathologists have compiled a recovery plan that reviews the current knowledge and the future needs of tar spot, with the intention of mitigating the disease's impact. |
| Posted: 27 Jan 2022 08:43 AM PST Engineers built a cost-effective artificial leaf that can capture carbon dioxide at rates 100 times better than current systems. Unlike other carbon capture systems, which work in labs with pure carbon dioxide from pressurized tanks, this artificial leaf captures carbon dioxide from the air or flue gas and is modular. |
| Posted: 27 Jan 2022 08:43 AM PST Elderly people who live near or downwind of unconventional oil and gas development (UOGD), such as fracking, are at greater risk of premature death than those who don't live near UOGD. Airborne contaminants emitted by UOGD that are transported downwind are likely contributing to increased mortality. |
| COVID-19 exposure possible outside of home isolation rooms Posted: 27 Jan 2022 08:43 AM PST A new study has detected tiny airborne particles containing RNA from the SARS-CoV-2 that causes COVID-19, both inside and outside of the rooms in which infected people were self-isolating at home. This finding suggests that airborne transmission beyond the isolation rooms in homes may pose a risk of infection to other home occupants. |
| Posted: 27 Jan 2022 07:43 AM PST Natural gas stoves release methane -- a potent greenhouse gas -- and other pollutants through leaks and incomplete combustion. Researchers estimate that methane leaking from stoves inside U.S. homes has the same climate impact as about 500,000 gasoline-powered cars and the stoves can expose people to respiratory disease-triggering pollutants. |
| Decreasing development on forest and agricultural land partly driven by gas prices, study finds Posted: 27 Jan 2022 07:42 AM PST A new study found a steep decline in the development of forest and agricultural land from 2000 to 2015 compared to the previous two decades, which resulted in a broad shift towards denser development patterns throughout the U.S. A primary culprit was rising gas prices. |
| Rural air pollution may be as hazardous as urban, study finds Posted: 27 Jan 2022 07:41 AM PST New research shows that chemical reactivity, seasonality and distribution of airborne particulate matter are critical metrics when considering air pollution's impact on human health. Current environmental regulations focus on the mass of pollutant particles, and researchers are pushing to refocus regulatory efforts on more regional and health-relevant factors. |
| Fossil snail shells offer new tool for analyzing ancient ocean chemistry Posted: 26 Jan 2022 01:55 PM PST A collection of fossil shells from marine snails and clams is challenging a theory that says the world's deadliest mass extinction was accompanied by severe ocean acidification. The study is the first to use shells from fossilized mollusks to investigate ocean chemistry, demonstrating a new tool that scientists can use to study the conditions of the planet's deep past. |
| New meta-analysis explores potential environmental causes of ALS disease Posted: 26 Jan 2022 11:42 AM PST In a new meta-analysis of available ALS literature, researchers explore environmental influences potentially linked ALS disease, using rigorous quantitative methods. The study also examines the distribution of ALS over space and time, correlating geographic data with exposure risks and lifestyle or occupational hazards. |
| Ancient ice reveals mysterious solar storm Posted: 26 Jan 2022 11:42 AM PST Through analysis of ice cores from Greenland and Antarctica, a research team has found evidence of an extreme solar storm that occurred about 9,200 years ago. What puzzles the researchers is that the storm took place during one of the sun's more quiet phases -- during which it is generally believed our planet is less exposed to such events. |
| Updrafts crucial: Clouds in the southern hemisphere more precisely understood Posted: 26 Jan 2022 11:41 AM PST Clouds in the southern hemisphere reflect more sunlight than those in the northern hemisphere. The reason is a more frequent occurrence of liquid water droplets, which results from an interplay between updrafts and a cleaner environment. |
| 23,000 years ago, humans in Israel enjoyed a new bounty of food options Posted: 26 Jan 2022 11:40 AM PST As climate shifted 23,000 years ago, humans in Israel experienced a new abundance of food, according to a new study. |
| Suitable growing regions for coffee, cashews, and avocados predicted to shift as Earth warms Posted: 26 Jan 2022 11:40 AM PST A new analysis predicts that, as climate change progresses, the most suitable regions for growing coffee arabica, cashews, and avocados will decline in some of the main countries that produce these crops. |
| Scientists regrow frog's lost leg Posted: 26 Jan 2022 11:40 AM PST Scientists have triggered long-term growth of legs in adult frogs, which are naturally unable to regenerate limbs. The frogs regrew a lost leg over months, triggered by just 24 hour exposure to a five-drug cocktail held under a bioreactor. The new legs were functional enough to enable sensation and locomotion. |
| Microscopic inner ear structures reveal why major groups of bats echolocate differently Posted: 26 Jan 2022 09:24 AM PST A new article compares the inner ear structures of the two main groups of bats. By examining the microscopic inner ears of bats from 19 of the 21 known bat families, the researchers were able to show that the presence of extra neurons and specialized ear structures align with a split in bat evolution revealed by DNA. |
| Posted: 26 Jan 2022 06:05 AM PST Strict COVID-19 lockdown policies such as workplace closures in European cities reduced levels of air pollution and the number of associated deaths, according to new estimates. |
| Cleaning your car may not protect you from this carcinogen, study finds Posted: 26 Jan 2022 06:05 AM PST It is unlikely that a cancer-causing chemical inside your car, TDCIPP, can be dusted or wiped way, according to new research. |
| Finding the tipping point for coastal wetlands Posted: 25 Jan 2022 02:32 PM PST Much of North Carolina's Albemarle-Pamlico Peninsula lies just a few feet above sea level, which exposes it to ocean water driven inland by storms and rising seas. The salt deposits left behind build up year after year, until eventually they become too much for some plants to cope with. Researchers have identified a 'tipping point' where even tiny changes in salinity can set off disproportionately large changes in the plants that live there. |
| Getting hydrogen out of banana peels Posted: 25 Jan 2022 06:30 AM PST Scientists have developed a way to maximize hydrogen yields from biowaste, within few milliseconds. The method uses rapid photo-pyrolysis to produce hydrogen gas and solid conductive carbon from banana peels. |
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