Trapped sediment in dams 'endangers' water supplies: UN

Thousands of the world's large dams are so clogged with sediment that they risk losing more than a quarter of their storage capacity by 2050, UN researchers said Wednesday, warning of the threat to water security.

Urban light pollution is a danger for marine ecosystems

Cities are artificially lit to allow humans to make use of the night. This light pollution means that stars are often barely visible in urban skies. But reduced stargazing is not the only impact of artificial light at night.

Microplastics flow into Gulf St. Vincent waters

Plastic pollution has been recorded in eight freshwater streams running into Gulf St. Vincent, confirming the regular flow of microplastics into local marine environments—and the need for better waste management systems.

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