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ScienceDaily: Earth & Climate News |
| Posted: 15 Oct 2021 03:42 PM PDT Ocean warming caused by anthropogenic greenhouse gas emissions will prompt many species of marine plankton to seek out new habitats, in some cases as a matter of survival. Researchers expect many organisms to head to the poles and form new communities -- with unforeseeable consequences for marine food webs. |
| Plant-based jet fuel could reduce emissions by 68% Posted: 14 Oct 2021 02:27 PM PDT Replacing petroleum-based aviation fuel with sustainable aviation fuel derived from a type of mustard plant can reduce carbon emissions by up to 68%, according to new research. |
| Expansion of wind and solar power too slow to stop climate change Posted: 14 Oct 2021 11:19 AM PDT The production of renewable energy is increasing every year. But after analyzing the growth rates of wind and solar power in 60 countries, researchers conclude that virtually no country is moving sufficiently fast to avoid global warming of 1.5°C or even 2°C. The article "National growth dynamics of wind and solar power compared to the growth required for global climate targets" was published in the journal Nature Energy, written by Aleh Cherp, Vadim Vinichenko, Jale Tosun, Joel A.Gordon and Jessica Jewell. |
| Hedges reduce pollution at breathing height in shallow street canyons, study confirms Posted: 14 Oct 2021 10:12 AM PDT An extensive field study into air quality along a road lined with buildings has confirmed that hedges can help mitigate traffic-related pollution up to 1.7m, reducing the pollutants breathed by pedestrians, young children and cyclists. |
| The Southern Ocean’s role in driving global carbon cycle stronger than expected Posted: 14 Oct 2021 10:12 AM PDT Based on the most comprehensive winter study to date, conducted in the Southern Ocean during July and August 2017, scientists were able to show that phytoplankton were indeed active during the icy cold and dark winter months. These findings are important for predictive global climate models, which currently are based predominantly on spring and summer seasons. With the addition of data from winter, the models can now better represent the atmosphere-to-ocean carbon transfer cycle over seasons. For scientists, this is a step forward in analyzing the sensitivity of this transfer to climate change. |
| Climate change threatens hydropower energy security in the Amazon basin Posted: 14 Oct 2021 10:11 AM PDT Hydropower is the dominant source of energy in the Amazon region, the world's largest river basin and a hotspot for future hydropower development. However, a new study warns that in the coming decades, climate change-driven reductions in precipitation and river discharge will diminish the Amazon's hydropower capacity. |
| Sustainable farming: There’s no one solution Posted: 14 Oct 2021 07:02 AM PDT Sustainable agriculture will not be achieved by one universal solution. A meta-analysis shows that the current focus on no-till farming does not achieve the desired results. A sustainable system of agriculture must be designed for local needs and in dialog with local farmers. |
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