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pollution h2o
A new study finds that the mining and processing of the metal critical to EV batteries and renewable energy storage projects depletes and contaminates surface water, often in already vulnerable communities.
Plastic debris is thought to be widespread in freshwater ecosystems globally1. However, a lack of comprehensive and comparable data makes rigorous assessment of its distribution challenging2,3. Here we present a standardized cross-national survey that assesses the abundance and type of plastic debris (>250 μm) in freshwater ecosystems. We sample surface waters of 38 lakes and reservoirs, distributed across gradients of geographical position and limnological attributes, with the aim to identify factors associated with an increased observation of plastics. We find plastic debris in all studied lakes and reservoirs, suggesting that these ecosystems play a key role in the plastic-pollution cycle. Our results indicate that two types of lakes are particularly vulnerable to plastic contamination: lakes and reservoirs in densely populated and urbanized areas and large lakes and reservoirs with elevated deposition areas, long water-retention times and high levels of anthropogenic influence. Plastic concentrations vary
Emmanuel Macron’s government is at least doing the bare minimum to avert the planetary crisis – and putting the UK to shame, says Guardian columnist George Monbiot
Going beyond climate disruption, the report by the Earth Commission group of scientists presents disturbing evidence that our planet faces growing crises of water availability, nutrient loading, ecosystem maintenance and aerosol pollution. These pose threats to the stability of life-support systems and worsen social equality.
The Stockholm University study highlights the chemicals’ mobility, which has been found in penguin eggs and polar bears
Hugo Tagholm can clear a beach in minutes. He issues a raw sewage alert and everyone races out of the water. Swimmers hate sewage as much as sharks — no one wants to splash about in excrement. But even Tagholm gets it wrong sometimes and finds himself surfing a brown wave. “It’s pretty unpleasant paddling through effluent,” he says. “I avoid it at all costs.”
Agricultural pesticide use and its associated environmental harms is widespread throughout much of the world. Efforts to mitigate this harm have largely been focused on reducing pesticide contamination of the water and air, as runoff and pesticide drift are the most significant sources of offsite pesticide movement. Yet pesticide contamination of the soil can also result in environmental harm.
As floods increase in frequency and intensity, chemicals buried in river sediments become “ticking time bombs” waiting to activate.
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