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ScienceDaily: Earth & Climate News |
| Antarctic ice-sheet melting to lift sea level higher than thought, Harvard study says Posted: 30 Apr 2021 01:59 PM PDT The new predictions show that in the case of a total collapse of the ice sheet, global sea level rise estimates would be amplified by an additional meter within 1,000 years. |
| Poorer communities hardest hit by toxic pollution incidents Posted: 30 Apr 2021 01:59 PM PDT Research shows toxic pollution hits poorer populations hardest as firms experience more pollutant releases and spend less money on waste management in areas with lower average incomes. |
| Wildfire smoke trends worsening for Western US Posted: 30 Apr 2021 10:54 AM PDT New research ties the worsening trend of extreme poor air quality events in Western regions to wildfire activity, with growing trends of smoke impacting air quality clear into September. |
| New view of species interactions offers clues to preserve threatened ecosystems Posted: 30 Apr 2021 09:04 AM PDT Scientists from around the world have produced a new analysis -- believed to be the most detailed study of specialized ecological data from global forests -- that is furthering science's understanding of species interactions and how diversity contributes to the preservation of ecosystem health. |
| Brazilian Amazon released more carbon than it stored in 2010s Posted: 30 Apr 2021 09:03 AM PDT The Brazilian Amazon rainforest released more carbon than it stored over the last decade - with degradation a bigger cause than deforestation - according to new research. |
| Northern forest fires could accelerate climate change Posted: 30 Apr 2021 06:32 AM PDT New research shows that the global models used to project how Earth's climate will change in the future underestimate the impact of forest fires and drying climate on forests' ability to capture and store atmospheric carbon. |
| Wasps are valuable for ecosystems, economy and human health (just like bees) Posted: 30 Apr 2021 06:32 AM PDT Wasps deserve to be just as highly valued as other insects, like bees, due to their roles as predators, pollinators, and more, according to a new article. |
| Cave deposits reveal Pleistocene permafrost thaw, absent predicted levels of CO2 release Posted: 30 Apr 2021 06:32 AM PDT Expanding the study of prehistoric permafrost thawing to North America, researchers found evidence in mineral deposits from caves in Canada that permafrost thawing took place as recently as 400,000 years ago, in temperatures not much warmer than today. But they did not find evidence the thawing caused the release of predicted levels of carbon dioxide stored in the frozen terrain. |
| Defect that limits hybrid perovskites solar-cell performance identified Posted: 30 Apr 2021 06:31 AM PDT Researchers have uncovered a major cause of limitations to efficiency in a new generation of solar cells. |
| Icebreaker's cyclone encounter reveals faster sea ice decline Posted: 30 Apr 2021 06:31 AM PDT An icebreaker unexpectedly in the path of an Arctic cyclone allowed researchers to unravel why sea ice declines during and after a cyclone. For the first time ever, scientists were able to show that cyclone-triggered processes within the Arctic Ocean melt sea ice from below. |
| Extent of human impact on the world's plant-life revealed Posted: 29 Apr 2021 11:26 AM PDT Research has shed new light on the impact of humans on Earth's biodiversity. The findings suggest that the rate of change in an ecosystem's plant-life increases significantly during the years following human settlement, with the most dramatic changes occurring in locations settled in the last 1500 years. |
| Lightning and subvisible discharges produce molecules that clean the atmosphere Posted: 29 Apr 2021 11:19 AM PDT Lightning bolts break apart nitrogen and oxygen molecules in the atmosphere and create reactive chemicals that affect greenhouse gases. Now, a team of atmospheric chemists and lightning scientists have found that lightning bolts and, surprisingly, subvisible discharges that cannot be seen by cameras or the naked eye produce extreme amounts of the hydroxyl radical -- OH -- and hydroperoxyl radical -- HO2. |
| Exploiting plants' ability to 'tell the time' to make food production more sustainable Posted: 29 Apr 2021 11:19 AM PDT Plant scientists say circadian clock genes, which enable plants to measure daily and seasonal rhythms, should be targeted in agriculture and crop breeding for higher yields and more sustainable farming. |
| Combining solar panels and lamb grazing increases land productivity, study finds Posted: 29 Apr 2021 09:34 AM PDT Land productivity could be greatly increased by combining sheep grazing and solar energy production on the same land, according to new research. |
| The Arctic's greening, but it won't save us Posted: 29 Apr 2021 08:23 AM PDT New research suggests that new green biomass in the Arctic is not as large a carbon sink as scientists had hoped. |
| Soil bacteria evolve with climate change Posted: 28 Apr 2021 10:55 AM PDT While evolution is normally thought of as occurring over millions of years, researchers have discovered that bacteria can evolve in response to climate change in 18 months. Biologists found that evolution is one way that soil microbes might deal with global warming. |
| Using cosmic-ray neutron bursts to understand gamma-ray bursts from lightning Posted: 28 Apr 2021 10:30 AM PDT Analysis of data from a lightning mapper and a small, hand-held radiation detector has unexpectedly shed light on what a gamma-ray burst from lightning might look like - by observing neutrons generated from soil by very large cosmic-ray showers. |
| Study of marine noise highlights need to protect pristine Australian waters Posted: 28 Apr 2021 06:44 AM PDT New research has found urgent action is needed to ensure human-made underwater noise in Australian waters does not escalate to levels which could be harmful to marine animals, such as whales, and negatively impact our pristine oceans. |
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