This blog may help people explore some of the 'hidden' issues involved in certain media treatments of environmental and scientific issues. Using personal digital images, it's also intended to emphasise seasonal (and other) changes in natural history of the Swansea (South Wales) area. The material should help participants in field-based modules and people generally interested in the natural world. The views are wholly those of the author.
Wednesday 27 April 2022
Underwater Avalanches
Turbidity currents are little understood, massive underwater avalanches (https://www.theguardian.com/science/2022/apr/27/massive-underwater-avalanches-deliver-pollutants-to-deep-sea). These turbidity currents are gravity-driven events, happening in a series of stages. They can carry more sediment into the deep sea, than the combined outputs of all the world's rivers. Turbidity current deposits (known as 'turbidites'), can be hundreds or even thousands of metres thick. A concern must be that these underwater avalanches can rapidly move plastic litter and other pollutants into the ocean depths. These accumulations could disturb entire marine ecosystems.
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Seeing the Changes 2023
In Bynea, Woodruff ( Gallium odoratum ) and Hemlock water dropwort ( Oenanthe crocata ) were in bloom. Also spotted my first Peacock ( In...
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The UK government continue their quest to turn England's rivers back into sewers. They first facilitated the privatised water companies...
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Garden plants in France, The Netherlands, The UK and Sikkim (NE India).
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