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ScienceDaily: Top Environment News |
| Cities are making mammals bigger Posted: 16 Aug 2021 11:39 AM PDT While climate change is causing some animals to shrink, a new study shows urbanization is causing many mammal species to grow both bigger and longer, possibly because of readily available food in places packed with people. |
| Development and evolution of dolphin, whale blowholes Posted: 16 Aug 2021 11:23 AM PDT New research is shedding light on how the nasal passage of dolphins and whales shifts during embryonic development from emerging at the tip of the snout to emerging at the top of the head as a blowhole. The findings are an integrative model for this developmental transition for cetaceans. |
| Molecular mechanisms of coronavirus drug candidate Molnupiravir unraveled Posted: 16 Aug 2021 09:57 AM PDT The antiviral agent incorporates RNA-like building blocks into the genome of the virus. |
| Pollinators: First global risk index for species declines and effects on humanity Posted: 16 Aug 2021 08:21 AM PDT Disappearing habitats and use of pesticides are driving the loss of pollinator species around the world, posing a threat to 'ecosystem services' that provide food and wellbeing to many millions – particularly in the Global South – as well as billions of dollars in crop productivity. |
| How the malaria parasite defends itself from fever is unveiled Posted: 16 Aug 2021 08:20 AM PDT A gene called PfAP2-HS allows the malaria parasite to defend itself from adverse conditions in the host, including febrile temperatures, according to new research. The study resolves a long-standing question on how the parasite responds to changes in its environment. |
| The Arctic Ocean’s deep past provides clues to its imminent future Posted: 16 Aug 2021 08:20 AM PDT As the Arctic Ocean warms and sea ice shrinks, will the newly exposed sea surface see a plankton population boom and a burgeoning ecosystem in the open Arctic Ocean? Not likely, say a team of scientists who have examined the history and supply rate of nitrogen, a key nutrient. Stratification of the open Arctic waters, especially in the areas fed by the Pacific Ocean via the Bering Strait, will prevent surface plankton from receiving enough nitrogen to grow abundantly. |
| Polymers 'click' together using green chemistry Posted: 16 Aug 2021 08:20 AM PDT A multi-institutional team of chemists harnessed the power of a dangerous gas called SOF4 to create new modifiable polymers useful for drug discovery and material science. The team used a type of rapid and reliable chemistry known as click chemistry to 'click' these molecules together without producing toxic byproducts. |
| Robotic floats provide new look at ocean health and global carbon cycle Posted: 16 Aug 2021 08:20 AM PDT Researchers demonstrated how a fleet of robotic floats can revolutionize our understanding of ocean primary productivity. |
| Pandemic and digitalization set stage for revival of a cast-off idea: Personal carbon allowances Posted: 16 Aug 2021 08:20 AM PDT Researchers say the time may be right for many industrialized nations to resurrect an idea once thought to be unfeasible: personal carbon allowances (PCAs). The concept, they report, has stronger possibilities due to a worsening climate crisis, changes in personal behavior due to the COVID-19 crisis and advances in artificial intelligence and information and communications technologies. |
| New theory of life’s multiple origins Posted: 16 Aug 2021 07:25 AM PDT What if life evolved not just once, but multiple times independently? Researchers now argue that in order to recognize life's full range of forms, we must develop a new theoretical frame that permits 'multiple paths' to life. |
| Woven nanotube fibers turn heat energy into electrical energy Posted: 16 Aug 2021 06:15 AM PDT Carbon nanotubes woven into thread-like fibers and sewn into fabrics become a thermoelectric generator that can turn heat from the sun or other sources into other forms of energy. |
| Raccoon dogs pose a particular threat to ground-nesting birds in Northern Europe Posted: 13 Aug 2021 12:20 PM PDT Artificial nest experiments demonstrated that the raccoon dog, an alien species abundant in Finland, is a more common duck nest predator than any indigenous mammalian species. The species depredated nests on shorelines as well as in forests, rural landscapes and urban areas. |
| Vital enzyme holds key to the fight against cancer and viral infections Posted: 13 Aug 2021 12:19 PM PDT A new study identifies two ways in which APOBEC3A -- a vital enzyme that is responsible for genetic changes resulting in a variety of cancers while protecting our cells against viral infection -- is controlled. |
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