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Environment

We thought Earth's water cycle was resilient to human meddling, but new analysis shows our supplies of water in plants and soil that are critical to generating rainfall are dangerously low. Here is what we must do to repair the damage

Physics

Technology

Environment

Technology

Earth

Environment

Environment

Environment

Technology

Now there is a way to use ink to write words or patterns in liquid, much as you might write on a solid surface, and the letters could conceivably last a very long time

Environment

Environment

Environment

Environment