Page 5 - Applied Geoscience News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Over 1 million barriers on Europe’s rivers World December 17, 2020 More than 1.2 million barriers criss-cross Europe’s rivers -- nearly twice as many as previously thought -- threatening some of the world’s most diverse ecosystems, new research showed Wednesday. Although the rivers have been dammed, forded or bridged for centuries, there is a surprising lack of detailed databases of the continent’s waterways. Most only list barriers of a certain height, above 10 metres, for example, leaving hundreds of thousands of smaller water breaks undocumented. In a pan-European initiative, sci...

Unsplash/CC0 Public Domain/ Phys.org/ MANILA BULLETIN Although the rivers have been dammed, forded or bridged for centuries, there is a surprising lack of detailed databases of the continent’s waterways. Most only list barriers of a certain height, above 10 metres, for example, leaving hundreds of thousands of smaller water breaks undocumented.  In a pan-European initiative, scientists collated more than 120 data bases on European rivers and ran tests to ensure no barrier was repeated in the final tally.  They found 629,955 unique barrier records — a huge number demonstrating the extent...

Rising Temperatures are Increasingly Thawing Permafrost Soils Written by AZoCleantechDec 11 2020 In the northern hemisphere, around one-quarter of the ground is permanently frozen. It has been estimated that these regions contain carbon that is almost twice as much as the Earth's present atmosphere. Permafrost areas thaw out and become marshland. Image Credit: Monique Patzner. According to a new study, such permafrost soils are progressively thawing out as the planet becomes warmer and are emitting that carbon, which speeds up the thawing process. An international team of researchers, includ...

News and featuresmenu Bacteria release climate-damaging carbon from thawing permafrost Along the thaw gradient, surface water is a rusty red, caused by microbes releasing iron and carbon compounds Monique Patzner Drill core of the active layer of the peatland Monique Patzner Press release issued: 10 December 2020 A new study based on scientific sampling of a rusty carbon sink at a permafrost peatland at Sweden has revealed that iron minerals fail to trap organic carbon, a vast source of CO2 and methane...