Bill Gates Backs Efforts to Block the Sun?
Harvard's SCoPEx project is no longer active, but misinformation about it lives on.
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Harvard's SCoPEx project is no longer active, but misinformation about it lives on.
Some observers argue the end of SCoPEx should mark the end of such proposals. Others say any future experiments should proceed in markedly different ways.
Technologies to slow global warming by manipulating the environment are rapidly advancing, but some experts want to pump the brakes.
Tennessee lawmakers have introduced a bill that would ban the release of chemicals into the atmosphere to alter temperature, weather or sunlight intensity.
The renowned scientist argues that the world is warming faster than climate models predict, and is in favor of bold approaches to block some of the sun's rays.