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ScienceDaily: Earth & Climate News |
| Holistic assessment of plastic pollution in the Caribbean Posted: 02 Aug 2021 07:39 PM PDT New research has resulted in the first holistic assessment of marine and land-based plastic pollution in the Southern Caribbean and some of the environmental and human factors which might influence its distribution. |
| New DNA study provides critical information on conserving rainforest lizards Posted: 02 Aug 2021 01:07 PM PDT Researchers have provided an important road map to conserving rough-nosed horned lizards in Sri Lanka. |
| Thawing permafrost releases greenhouse gas from depth Posted: 02 Aug 2021 01:07 PM PDT Geologists compared the spatial and temporal distribution of methane concentrations in the air of northern Siberia with geological maps. The result: the methane concentrations in the air after last year's heat wave indicate that increased gas emissions came from limestone formations. |
| Posted: 02 Aug 2021 11:02 AM PDT Salamanders can navigate complex and unstructured environments thanks to their impressive body-limb coordination. Researchers have built a model that mimics a salamander's walk with the hope it aids the development of agile and adaptive robots that can flexibly change their body-limb coordination. |
| Flood water: Toxins from the riverbed Posted: 02 Aug 2021 11:01 AM PDT A long-term hazard from flood water is often underestimated: The raging rivers swirl up pollutants out of their sediments that stem from environmental pollution decades or centuries ago. Such harmful substances can not only cause ecological damage in the river. They can also deposit themselves on flooded areas and affect crops, grazing livestock and humans. |
| Oxygen spike coincided with ancient global extinction Posted: 02 Aug 2021 08:50 AM PDT Researchers have found that the extinction at the end of the Permian period coincided with a sudden spike and subsequent drop in the ocean's oxygen content. |
| Sea levels influence eruptions on volcanic island Posted: 02 Aug 2021 08:50 AM PDT The rise and fall of sea levels influence the likelihood of volcanic eruptions on the Greek island of Santorini, new research has discovered. Analyzing the timings of eruptions over hundreds of thousands of years, the researchers found that a 40 meter fall in sea level is a crucial point beyond which eruptions are more likely to occur. The findings could have implications for millions of people living on volcanic islands around the world. |
| Posted: 02 Aug 2021 08:50 AM PDT Researchers thought 30 years ago that they just introduced some Glanville fritillary butterfly larvae on a small island in the Åland islands, Finland. Little did they know that within the butterfly larvae there nested two other insect species and a bacterial symbiont. This created a unique opportunity to study how a local accidental introduction of insects can affect the dynamics and genetics of the neighbouring populations. |
| Russian Arctic losing billions of tons of ice as climate warms Posted: 02 Aug 2021 08:49 AM PDT Glaciers and ice caps in two archipelagos in the Russian Arctic are losing enough meltwater to fill nearly five million Olympic-size swimming pools each year, research shows. |
| Stinkweed could make a cleaner bio-jet fuel, study finds Posted: 02 Aug 2021 08:49 AM PDT A common farm weed could make a 'greener' jet fuel with fewer production-related environmental impacts than other biofuels, a new study indicates. |
| Posted: 02 Aug 2021 08:49 AM PDT A new study points to a strong 'edge effect' in marine protected areas (MPAs), sharply reducing by 60 percent the fish population living up to 1 - 1.5 km within the MPA. This significantly diminishes the effectiveness of the MPA. Most of the damage stems from fishing pressure around the MPAs. |
| Posted: 02 Aug 2021 08:44 AM PDT The rise of oxygen levels early in Earth's history paved the way for the spectacular diversity of animal life. But for decades, scientists have struggled to explain the factors that controlled this gradual and stepwise process, which unfolded over nearly 2 billion years. |
| Common insecticide is harmful to bees in any amount Posted: 02 Aug 2021 07:30 AM PDT The dangers of neonicotinoid insecticides likely can't be watered down. That's the conclusion of a new study showing an insecticide made for commercial plant nurseries is harmful to a typical bee even when applied well below the label rate and the plant receives high levels of irrigation. |
| New York City's hidden old-growth forests Posted: 02 Aug 2021 07:30 AM PDT Tree-ring scientists have mined rare old-growth timbers from demolition at an iconic Manhattan building to produce historical and climate data. Ongoing salvage efforts at other buildings promise to expand on these findings. |
| Plastic creates 'evolutionary trap' for young sea turtles Posted: 02 Aug 2021 07:30 AM PDT Plastic pollution creates an 'evolutionary trap' for young sea turtles, new research shows. After hatching on beaches, sea turtles travel on currents and spend their early years in the open ocean. But these currents now accumulate vast quantities of plastic and -- feeding near the surface -- many young turtles swallow it. |
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