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ScienceDaily: Top Environment News |
| Research finds key advances towards reducing the cost of plant improvement Posted: 09 Nov 2021 12:52 PM PST Crop improvement often involves the transfer of genetic material from one organism to another to produce a valuable trait. Some major examples of crops with these so-called 'transgenes' include disease-resistant cotton and beta-carotene-enhanced golden rice. However, when foreign DNA is introduced into a host organism, a natural defensive response in plants is to repress or silence the expression of the unfamiliar genetic material. This 'silencing,' a process known to involve DNA methylation, is a multimillion-dollar problem in the global agricultural improvement industry. |
| Can't find your keys? You need a chickadee brain Posted: 09 Nov 2021 10:54 AM PST Researchers have shown that there is a genetic component underlying the amazing spatial memories of Mountain Chickadees. Although the genetic basis for spatial memory has been shown for humans and other mammals, direct evidence of that connection has never before been identified in birds. |
| Global river database documents 40 years of change Posted: 09 Nov 2021 10:54 AM PST A new database compiling movement of the largest rivers in the world over time could become a crucial tool for urban planners to better understand the deltas that are home to these rivers and a large portion of Earth's population. |
| Posted: 09 Nov 2021 09:03 AM PST A remarkably well-preserved fossil elephant cranium from Kenya is helping scientists understand how its species became the dominant elephant in eastern Africa several million years ago, a time when a cooler, drier climate allowed grasslands to spread and when habitually bipedal human ancestors first appeared on the landscape. |
| Scientists invent ‘smart’ window material that blocks rays without blocking views Posted: 09 Nov 2021 09:03 AM PST An international research team has invented a 'smart' window material that controls heat transmission without blocking views, which could help cut the energy required to cool and heat buildings. |
| Just how much do density and green space affect urban energy use? It depends on where you live. Posted: 09 Nov 2021 09:03 AM PST Tree cover, paved surfaces, the spacing of buildings and green spaces all affect how much energy it takes to offset the 'urban heat island effect.' But the relative contribution of these urban form factors has been a matter of debate. Researchers seeking to clarify the matter presented a method for measuring the impact of each of these factors -- and revealed that their contribution to building energy use varies between cities. |
| Biodiversity ‘time machine’ uses artificial intelligence to learn from the past Posted: 09 Nov 2021 09:03 AM PST Experts can make crucial decisions about future biodiversity management by using artificial intelligence to learn from past environmental change, according to new research. |
| Life cycle assessment of carbon capture Posted: 09 Nov 2021 09:03 AM PST Life cycle assessment of carbon capture at incineration plants shows that despite some drawbacks, the net result is a clear advantage for the climate. |
| Microbiome discovery could help save kids’ hearing Posted: 09 Nov 2021 06:53 AM PST Bacteria found in children's upper respiratory systems could help fight chronic middle ear infections, the leading cause of preventable hearing loss and deafness in Indigenous communities. |
| Cellular aging: A basic paradox elucidated Posted: 09 Nov 2021 06:53 AM PST Cancer researchers show for the first time that cellular senescence, which occurs when aging cells stop dividing, is caused by irreversible damage to the genome rather than simply by telomere erosion. |
| Male and female guinea baboons equally successful as leaders Posted: 09 Nov 2021 05:08 AM PST The sun rises over the Senegalese savannah. The Guinea baboons have spent the night on their sleeping trees and set off together to forage. In order to depart simultaneously as a group and roam together during the day, the animals have to coordinate well. Researchers have studied which animals lead the group and how they decide when and in which direction to set off. They observed Guinea baboons (Papio papio) on their forays for two years. The overarching goal was to elucidate which factors favor despotic versus democratic decisions in groups. The authors found that both males and females initiate group departures and that both sexes are similarly successful in doing so. This pattern distinguishes Guinea baboons from hamadryas baboons (Papio hamadryas), in which group movements are initiated and led exclusively by males. |
| Climatic drivers of honey bee disease revealed Posted: 09 Nov 2021 05:07 AM PST Honey bee colonies worldwide have suffered from a range of damaging diseases. A new study has provided clues on how changing weather patterns might be driving disease in UK colonies. |
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