Greenhouse gases can help us find advanced alien civilizations, scientists say

By Vishwam Sankaran | The Independent UK |

THE INDEPENDENT UK - Scientists have identified a set of greenhouse gasses which could be used as a marker to look for advanced alien civilizations with the potential to transform entire planets to make them habitable.

While greenhouse gasses cause global warming and must be controlled on Earth, they may be used intentionally to make other worlds hospitable.

“For us, these gases are bad because we don’t want to increase warming. But they’d be good for a civilization that perhaps wanted to forestall an impending ice age or terraform an otherwise uninhabitable planet in their system,” study co-author author Edward Schwieterman from the University of California Riverside explained.

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