"The plan sounds like science fiction — but could be fact within a decade; every day more than 800 giant aircraft would lift millions of tonnes of chalk dust to a height of 12 miles above the Earth's surface and then sprinkle the lot high around the stratosphere. In theory, the airborne dust would create a gigantic sunshade, reflecting some of the Sun's rays and heat back into space, dimming those that get through and so protecting Earth from the worsening ravages of climate warming."

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"Countries that form a working group for the Montreal Protocol are expected to begin debating a proposal to examine the risks and benefits of geoengineering next month in Bangkok. These are solutions that might help cool an overheated planet if global efforts to reduce human-caused greenhouse gas emissions fall short."

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"To help protect the planet, many experts argue in favor of geoengineering, or deliberately hacking the Earth by sequestering atmospheric carbon or blocking sunlight. But while these plans may be well-intentioned, reports Business Insider, any country that pursues them without other nations’ blessings could inadvertently start a global war."

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"Geoengineering is the process of artificially altering Earth's natural cycles. Such technologies are increasingly being discussed as potential ways to address climate change."

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