Thousands of tonnes of litter are pouring into the North Sea via the Rhine every year, poisoning the waters with heavy metals, microplastics and other chemicals, research has found. This litter can be detrimental to the environment and human health: tyres, for example, contain zinc and other heavy metals that can be toxic to ecosystems in high concentrations. “Even natural, less persistent materials, such as worked wood, paper, cardboard and food waste may contain toxic or harmful additives,” said Dr Leandra Hamann, a zoologist at the University of Bonn and lead author of the study. Rivers play a significant role
Quebecs Lake Rouge vanished but was it a freak natural event or caused by human actions?
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