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ScienceDaily: Earth & Climate News |
| New research questions ‘whiff of oxygen’ in Earth’s early history Posted: 05 Jan 2022 12:13 PM PST A reexamination of Earth's famous 'whiff of oxygen' has the potential to rewrite early accounts of the planet's history by finding that atmospheric oxygen actually did not exist prior to the Great Oxygenation Event (GOE). |
| Dairy farmers can adapt to climate change Posted: 05 Jan 2022 10:59 AM PST Dairy farmers in the Northeast -- facing a warming climate that exacerbates nutrient pollution but lengthens the growing season -- can reduce the environmental impact of their operations and maximize revenues by double cropping and injecting manure into the soil, rather than broadcasting it. |
| Toward a more inclusive definition of green infrastructure Posted: 05 Jan 2022 08:14 AM PST A new nationwide analysis of 122 plans from 20 US cities found that many plans fail to explicitly define green infrastructure. When they do, they tend to focus on stormwater management, favoring engineered facilities over parks and larger urban green spaces. The study is the first systematic review of the use and definition of the green infrastructure concept in US city plans. |
| New research shows gene exchange between viruses and hosts drives evolution Posted: 05 Jan 2022 08:14 AM PST The first comprehensive analysis of viral horizontal gene transfer (HGT) illustrates the extent to which viruses pick up genes from their hosts to hone their infection process, while at the same time hosts also co-opt useful viral genes. |
| Deforestation increases risk of flash flooding in fast-growing West African coastal cities Posted: 05 Jan 2022 07:32 AM PST Research has revealed frequent storm activity in coastal areas is a previously unrecognized way in which deforestation can increase flooding. The study found the frequency of thunderstorms in some fast-growing African coastal cities has doubled over the past 30 years, with much of this increase linked to the impact of deforestation on the local climate. |
| Climate change could lead to power outages, higher power costs on west coast of US Posted: 05 Jan 2022 07:32 AM PST Two studies project the future of power supply and demand on the West Coast under different scenarios: one under climate change and another where power sources shift toward renewables and the climate follows historic trends. |
| Ancient Maya lessons on surviving drought Posted: 05 Jan 2022 06:45 AM PST A new study casts doubt on drought as the driver of ancient Mayan civilization collapse. |
| Study reveals more hostile conditions on Earth as life evolved Posted: 04 Jan 2022 04:25 PM PST During long portions of the past 2.4 billion years, the Earth may have been more 'inhospitable' to life than scientists previously thought, according to new computer simulations. Using a state-of-the-art climate model, researchers now believe the level of ultraviolet (UV) radiation reaching the Earth's surface could have been underestimated, with UV levels being up to ten times higher. |
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