Might an enormous orbiting “shield” be one way to combat the rising temperatures around the world caused by elevated atmospheric carbon dioxide levels? Writing in the International Journal of Global Warming, a team in China has done the calculations and they suggest it might be possible to lower average global temperatures by a third of a degree Celsius with such a shield. This could have a significant, low-cost impact on climate change when we consider that fractions of a degree rises in temperature are already causing serious problems at the Earth’s extreme environments.
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Source: Phys.org