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Articles on Freshwater use

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In 2022, California built an emergency drought barrier across the West False River near Oakley to protect against saltwater intrusion. AP Photo/Terry Chea

What is seawater intrusion? A hydrogeologist explains the shifting balance between fresh and salt water at the coast

Saltwater intrusion is bad for human health, ecosystems, crops and infrastructure. Here’s how seawater can move inland, and why climate change is making this phenomenon more frequent and severe.
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It’s not just climate – we’ve already breached most of the Earth’s limits. A safer, fairer future means treading lightly

We’ve blown past the safe and just limit for vital Earth systems, from climate change to the biosphere and the use of fertilisers and freshwater. For humans to thrive means living in safe limits

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