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ScienceDaily: Earth & Climate News |
| Hydrofoils: Major climate benefits when ships 'fly' over the surface Posted: 02 Jun 2022 06:51 AM PDT Soon, electric passenger ferries skimming above the surface across the seas may become a reality. A research team has created a unique method for further developing hydrofoils that can significantly increase the range of electric vessels and reduce the fuel consumption of fossil-powered ships by 80 per cent. |
| Which forces control the elevation of mountains? Posted: 02 Jun 2022 06:51 AM PDT Scientists have come up with a new classification scheme for mountain belts that uses just a single number to describe whether the elevation of the mountain belt is controlled mainly by weathering and erosion or by properties of the Earth's crust, i.e., the lithospheric strength and tectonic forces. |
| A 3400-year-old city emerges from the Tigris River Posted: 01 Jun 2022 05:00 PM PDT Archaeologists have uncovered a 3400-year-old Mittani Empire-era city once located on the Tigris River. The settlement emerged from the waters of the Mosul reservoir early this year as water levels fell rapidly due to extreme drought in Iraq. The extensive city with a palace and several large buildings could be ancient Zakhiku -- believed to have been an important center in the Mittani Empire (ca. 1550-1350 BC). |
| Researchers show dynamic soaring isn't just for albatrosses Posted: 01 Jun 2022 02:02 PM PDT A new study shows how small seabirds have mastered the art of working smarter not harder when soaring at sea. |
| Less air pollution leads to higher crop yields Posted: 01 Jun 2022 11:28 AM PDT New analysis shows crop yields could increase by about 25% in China and up to 10% in other parts of the world if emissions of a common air pollutant decreased by about half. |
| Research shows how Gulf of Mexico escaped ancient mass extinction Posted: 01 Jun 2022 10:30 AM PDT An ancient bout of global warming 56 million years ago that acidified oceans and wiped-out marine life had a milder effect in the Gulf of Mexico, where life was sheltered by the basin's unique geology. The findings could help scientists determine how current climate change will affect marine life and aid in efforts to find deposits of oil and gas. |
| The persistent effects of colonialism in Caribbean science Posted: 01 Jun 2022 10:30 AM PDT A new study shows how the legacy of colonialism is still deeply entrenched within scientific practice across the Caribbean archipelago. Rather than solely critiquing these practices, however, the authors hope the study serves as a map to help researchers avoid the pitfalls of extractive science. |
| Forests: Spatial aspects of biodiversity, homogenization threat to forest ecosystems Posted: 01 Jun 2022 08:18 AM PDT A study highlights the importance of spatial aspects of biodiversity for healthy functioning of naturally occurring forests. Biologists determined that tree beta diversity -- a measure of site-to-site variation in the composition of species present within a given area -- matters more for ecosystem functioning than other components of biodiversity at larger scales. The research also shows that the relationship between beta diversity and tree biomass strengthens with increasing spatial scale (the size of an area) a finding that has implications for conservation planning. |
| New virus variant threatens the health of bees worldwide Posted: 01 Jun 2022 08:18 AM PDT A dangerous variant of the deformed wing virus is on the rise worldwide. The virus infects honeybees, causing their wings to atrophy and the animals to die. The new variant, which has already replaced the original strain of the virus in Europe, is spreading to other regions of the world and causing entire bee colonies to collapse. |
| Engineers uncover secret 'thinking' behind dandelions' seed dispersal Posted: 01 Jun 2022 08:17 AM PDT High on sunshine, humans often decide when dandelions get to spread their species -- but the puffballs have their own ideas on how best to proliferate. |
| Posted: 01 Jun 2022 06:22 AM PDT Protected and rare bats regularly die at wind turbines (WT). This is why the operation of new wind turbines is temporarily curtailed during periods of high bat activity. Old wind turbines run without curtailment, however. A scientific team has now produced an exemplary estimate of bat fatality rates at such old turbines by systematically recording bat carcasses in the vicinity of the turbines. During two months, 70 bats died on average per wind turbine. Even if these figures cannot be extrapolated one-to-one to all 20,000 old turbines in Germany, there is a considerable need for action. The operation of old turbines should be adjusted to the current regulations for new turbines, the authors argue. |
| Automated drones could scare birds off agricultural fields Posted: 01 Jun 2022 06:21 AM PDT A research team has developed a system where cameras could spot pest birds in vineyards or orchards and launch drones to drive off the avian irritants, then return to watch for the next invading flock. All without a human nearby. |
| A cushy lab life has its evolutionary costs -- when it comes to fish, that is Posted: 27 May 2022 09:14 AM PDT An animal's ability to adapt to its environment is clearly key to its survival, but does that ability come at a physiological cost? A clever experiment comparing laboratory zebrafish with their wild relatives suggests it does. |
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