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ScienceDaily: Earth & Climate News |
| Rapid glacial advance reconstructed during the time of Norse occupation in Greenland Posted: 25 Mar 2022 06:39 AM PDT The Greenland Ice Sheet is the second largest ice body in the world, and it has the potential to contribute significantly to global sea-level rise in a warming global climate. Understanding the long-term record of the Greenland Ice Sheet, including both records of glacial advance and retreat, is critical in validating approaches that model future ice-sheet scenarios. However, this reconstruction can be extremely challenging. A new study has reconstructed the advance of one of the largest tidewater glaciers in Greenland to provide a better understanding of long-term glacial dynamics. |
| https://www.uni-goettingen.de/en/3240.html?id=6625 Posted: 24 Mar 2022 03:47 PM PDT Tropical peatlands are one of the most efficient carbon sinks. The flipside is that they can become massive emitters of carbon if they are damaged, for instance by land use change, degradation or fire. This can lead to faster climate warming. Researchers now show how peatland in the coastal areas in Sumatra and Borneo in Indonesia developed over thousands of years and how climate and sea level influenced their dynamics throughout. |
| Citizen divers aid understanding of fish in the Salish sea Posted: 24 Mar 2022 03:47 PM PDT Citizen scientists are increasingly playing crucial roles in understanding fish populations, according to a new study. Over the past 20 years, volunteers have helped monitor more than half of the total fish species known to occur in the Salish Sea. |
| Carbon-coated nickel enables fuel cell free of precious metals Posted: 24 Mar 2022 03:45 PM PDT A nitrogen doped carbon-coated nickel anode can catalyze an essential reaction in hydrogen fuel cells at a fraction of the cost of the precious metals currently used, researchers have found. |
| Warming oceans are getting louder Posted: 24 Mar 2022 10:03 AM PDT Climate change is speeding sound transmission in the oceans and the way it varies over the globe with physical properties of the oceans. Two 'acoustic hotspots' of future sound speed increases are predicted east of Greenland and in the Northwest Atlantic Ocean, East of Newfoundland. In these locations, the average speed of sound is likely to increase by more than 1.5% if 'business-as-usual' high rates of greenhouse gas emissions continue through 2100. |
| Blow flies can be used detect use of chemical weapons, other pollutants Posted: 24 Mar 2022 10:02 AM PDT A study suggests blow flies could be used to detect the use of chemical weapons -- as well as other dangerous substances -- in areas too dangerous or remote for human investigators. |
| Posted: 24 Mar 2022 09:26 AM PDT An international research team has put together the first gelada reference genome, assembled from a single wild adult female gelada from the Simien Mountains, Ethiopia. They combined it with a detailed study of data collected from wild geladas to identify any adaptations to their high-altitude environment. |
| Win-wins in environmental management hard to find Posted: 24 Mar 2022 09:25 AM PDT When a booming marine fishery can increase its shrimp catch while also reducing unintentional bycatch of turtles --t hat's an example of what environmental scientists and managers call a 'win-win.' Models often predict this ideal outcome is achievable, yet stakeholders rarely see it manifest in the real world. |
| Indian forest loss 'worse than feared' due to climate change Posted: 24 Mar 2022 07:45 AM PDT A national-scale study of the relationship between forest loss and rainfall and temperature trends in India reveals climate change may have contributed to huge declines during last two decades, countering official reports that suggest small losses, and adding to existing concerns over deforestation. |
| Road traffic in European cities exposes 60 million people to noise levels harmful to health Posted: 24 Mar 2022 07:45 AM PDT A study assessed the levels of noise generated by road traffic and examined its impact on health in 749 European cities. The findings show that nearly 60 million adults are subjected to unhealthy levels of vehicle-generated noise. Compliance with the World Health Organization (WHO) noise-level guidelines could prevent 3,600 deaths annually from ischemic heart disease alone. |
| Student researchers improve coral restoration efforts Posted: 24 Mar 2022 07:45 AM PDT A recent study revealed that exposing rice coral larvae to warmer temperatures did not improve survival once the coral developed into juveniles and were exposed to heat stress. |
| Understanding complex faults: Rupture propagation during the 2010 El Mayor-Cucapah earthquake Posted: 24 Mar 2022 07:44 AM PDT Researchers have identified irregular rupture propagation during the 2010 El Mayor-Cucapah earthquake in Mexico by incorporating teleseismic P waveform inversion with traditional modeling, allowing resolution of the rupture process and its relation to the complex fault system while mitigating modeling errors. Reducing errors made because of inaccurate assumptions about fault geometry is critical for robust interpretation of complex slip histories. |
| Breaking down plastic into its constituent parts Posted: 24 Mar 2022 07:44 AM PDT A team of ETH researchers led by Athina Anastasaki have succeeded in breaking down plastic into its molecular building blocks and in recovering over 90 percent of them. A first step towards genuine plastic recycling. |
| Remote Indian Ocean reefs bounce back quickly after bleaching Posted: 24 Mar 2022 07:44 AM PDT Coral reefs in remote or protected areas can recover quickly after mass coral bleaching events, new research shows. |
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