The deep sea could hold the key to a renewable future. Is it worth the costs?

For humanity to kick its fossil fuel habit, we’re going to need a lot more wind turbines, solar panels, and batteries. Building all of that green energy infrastructure will likely require billions of tons of metals and minerals, raising the question of where we’re going to get them.One surprising possible answer? The bottom of the sea.

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These rarely used, dirty power plants could be cheaply replaced by batteries

A sweeping analysis released by researchers at the nonprofit Physicians, Scientists, and Engineers for Health Energy (PSE) studied nine states to identify which peaker plants have the greatest potential to be replaced by clean energy alternatives, based on their operational features and the characteristics of local electricity grids, as well as the health, environmental, and equity benefits of retiring the plants.

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Countries must work together on CO2 removal to avoid dangerous climate change

The team, from Imperial College London, the University of Girona, ETH Zürich and the University of Cambridge, say countries need to start working together now to make sure enough CO2 is removed in a fair and equitable way. Reaching these targets will require mitigation lowering the carbon dioxide (CO2) emitted through changes such as increased use of renewable energy sources, and removal of CO2 from the atmosphere through measures such as reforestation and carbon capture and storage.

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