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ScienceDaily: Top Environment News |
| Solar hydrogen for Antarctica: Advantages of thermally coupled approach Posted: 02 Jul 2021 12:43 PM PDT Their conclusion: in extremely cold regions, it can be considerably more efficient to attach the PV modules directly to the electrolyser, i.e. to thermally couple them. This is because the waste heat from the PV modules increases the efficiency of electrolysis in this environment. The results of this study are also relevant for other cold regions on Earth, such as Alaska, Canada, and high mountain regions, for example. In these places, solar hydrogen could replace fossil fuels such as oil and petrol. |
| Air pollution during pregnancy may affect growth of newborn babies Posted: 02 Jul 2021 12:43 PM PDT Maternal exposure to air pollution during pregnancy has often been linked to adverse effects on the health of the newborn. However, there are very few studies on the subject. A study has just concluded that the stages most sensitive to air pollution are the early and late months of pregnancy. |
| New insights into the assembly of photosynthetic membranes Posted: 02 Jul 2021 12:43 PM PDT An international study has elucidated the structure of a protein that is required for the assembly and stability of photosynthetic membranes. |
| Neurobiology: How mice see the world Posted: 02 Jul 2021 12:43 PM PDT Researchers have developed an open-source camera system that images natural habitats as they appear to rodents. |
| After routing de Soto, Chickasaws repurposed Spanish objects for everyday use Posted: 02 Jul 2021 12:43 PM PDT Archaeologists have unearthed a rare trove of more than 80 metal objects in Mississippi thought to be from Hernando de Soto's 16th-century expedition through the Southeast. Many of the objects were repurposed by the resident Chickasaws as household tools and ornaments, an unusual practice at a time when European goods in North America were few and often reserved for leaders. |
| A globally important microbial process hidden on marine particles Posted: 02 Jul 2021 12:43 PM PDT Nitrogen is essential for all life on Earth. In the global oceans however, this element is scarce, and nitrogen availability is therefore critical for the growth of marine life. Some bacteria found in marine waters can convert nitrogen gas (N2) to ammonia (known as N2 fixation), and thereby supply the marine food web with nitrogen. |
| Solving a long-standing mystery about the desert's rock art canvas Posted: 02 Jul 2021 12:42 PM PDT Petroglyphs are carved in a material called rock varnish, the origins of which have been debated for years. Now, scientists argue it's the result of bacteria and an adaptation that protects them from the desert sun's harsh rays. |
| Is global plastic pollution nearing an irreversible tipping point? Posted: 01 Jul 2021 11:09 AM PDT Current rates of plastic emissions globally may trigger effects that we will not be able to reverse, argues a new study. According to the authors, plastic pollution is a global threat, and actions to drastically reduce emissions of plastic to the environment are 'the rational policy response.' |
| Striking a balance: Trade-offs shape flower diversity Posted: 01 Jul 2021 08:26 AM PDT Flower generalization has often been viewed as a suboptimal solution to managing the needs of different visitors. Researchers have developed a framework to examine flower-animal interactions and how different types of visitor-mediated trade-offs affect flower evolution. They found that mitigating trade-offs can lead to novel combinations of traits that enhance floral diversity. These findings could explain the discrepancy between observed flower visitors and those predicted based on a flower's traits. |
| Posted: 30 Jun 2021 09:54 AM PDT Increasing our understanding of cellular processes requires information about the types of biomolecules involved, their locations, and their interactions. This requires the molecules to be labeled without affecting physiological processes (bioorthogonality). This works when the markers are very quickly and selectively coupled using small molecules and 'click chemistry.' A team of researchers has now introduced a novel type of click reaction that is also suitable for living cells and organisms. |
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