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What If Humans Were Silicon-Based Instead of Carbon-Based?
Carbon is the primary building block of all life on Earth. Without it, humans would have no DNA. What if we tried replacing ...
This company wants to cool the planet one balloon at a time. Some scientists aren't buying it
Luke Iseman and Andrew Song have a plan to cool the planet, inspired by a science fiction novel, using balloons full of heat-reflecting sulfur dioxide launched into the Earth's stratosphere. But some ...