Earth Science News -- ScienceDaily
Earth science research and news. Read science articles on air quality, geology, meteorology, oceanography, paleontology and science and the environment.
Through intricate study of cave deposits in Spain, geologists identified a rapid rise in sea level that started during the Industrial Revolution.
Posted: June 30, 2022, 3:45 pm
The eruption of the Hunga Tonga-Hunga Ha'apai submarine volcano in January 2022 was one of the most explosive volcanic events of the modern era, a new study has confirmed.
Posted: June 30, 2022, 3:44 pm
Using data gathered over the last four decades to study the effects of temperature changes and rain on the atmospheric concentration of methane, scientists have concluded that Earth could be both delivering more, and removing less, methane into the air than previously estimated, with the result that more heat is being trapped in the atmosphere. The study, published in the scientific journal Nature Communications on 23 June, addresses the large uncertainty about the impact of climate change on atmospheric methane. The study finds that this impact could be four times greater than that estimated in the latest Intergovernmental Panel on Climate Change (IPCC) report.
Posted: June 30, 2022, 12:33 pm
New research reveals that wildfires may have been a key contributor to the total collapse of land ecosystems during Earth's worst mass extinction event over 250 million years ago.
Posted: June 30, 2022, 12:33 pm
The way rivers function is significantly affected by how much sediment they transport and where it gets deposited. River sediment -- mostly sand, silt, and clay -- plays a critical ecological role, as it provides habitat for organisms downstream and in estuaries. It is also important for human life, resupplying nutrients to floodplain agricultural soils, and buffering sea level rise caused by climate change by delivering sand to deltas and coastlines. However, these functions are under threat: in the past 40 years, humans have caused unprecedented, consequential changes to river sediment transport, according to a new study.
Posted: June 29, 2022, 8:10 pm
Researchers studying ancient sea bed burrows and trails have discovered that bottom burrowing animals were among the first to bounce back after the end-Permian mass extinction.
Posted: June 29, 2022, 7:01 pm
How is climate change affecting the permanently frozen soils of the Arctic? What will the consequences be for the global climate, human beings, and ecosystems? And what can be done to stop it?
Posted: June 29, 2022, 4:11 pm
The recent Fagradalsfjall eruption in the southwest of Iceland has enthralled the whole world, including nature lovers and scientists alike. The eruption was especially important as it provided geologists with a unique opportunity to study magmas that were accumulated in a deep crustal magma reservoir but ultimately derived from the Earth's mantle (below 20 km).
Posted: June 29, 2022, 4:11 pm
A chemical compound discovered in 2019 in Fairbanks' wintertime air accounts for a significant portion of the community's fine particulate pollution, according to new research that seeks to better understand the causes and makeup of the dirty air. The finding is the first measurement of how much hydroxymethanesulfonate, or HMS, is in Fairbanks' air.
Posted: June 28, 2022, 6:46 pm
A new study reassesses emissions of carbon dioxide and methane into the atmosphere from African lakes. While it was previously assumed that these lakes were significant carbon dioxide sources, it has since been discovered that they really emit very little carbon dioxide but a lot of methane, adding to the emissions burden.
Posted: June 28, 2022, 3:33 pm
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