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.
Friday 22 January 2021
US Rivers Don't Just Roll On
A study of satellite images of major US rivers, taken between 1984 and 2018, have found that around a third have changed their colour in less than 40 years (https://www.theguardian.com/environment/2021/jan/22/one-third-us-rivers-changed-color-recent-decades). Some rivers (e.g. the Mississippi) show seasonal colour change but alterations elsewhere seem related to climate and/or human intervention. For example, Lake Mead (part of the Colorado river) has changed from blue-green to yellow in colour as a result of declining water levels. The Double Mountain Fork Brazos river in Texas, has done the reverse after the creation of a dam in that region. This kind of analysis is helpful, in terms of tracking what is happening to the environment. It could also be applied to other geographical features.
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Birder's Bonus 233
Unusually, a Mute swan ( Cynus olor ) was floating on the Loughor estuary near Bynea.
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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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