Secret Sun-Dimming Experiment Stopped in California
leave no stone unturned: to try everything possible to find something or solve a problem
A secret experiment to dim the Sun isn’t science fiction. Scientists are exploring a method called solar geoengineering to slow global warming. One idea is to spray tiny particles, such as salt water, into the sky so they mix with clouds. This can make the clouds brighter and more reflective, bouncing more sunlight back into space and slightly cooling the planet.
Last year, city officials in Alameda, California, shut down a small, unannounced test. It was actually preparation for a much larger program. They were planning to dim the sun in an area over the ocean about the size of Puerto Rico.
Critics warn that these experiments could cause a environmental disaster. They say it could also affect weather in unpredictable ways. But supporters believe scientists must leave no stone unturned in finding solutions to slow climate change.
Sample sentences
The rescue team left no stone unturned in their search after the earthquake.
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The scientists left no stone unturned in their study of the rare disease.
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