Scientists demonstrate passive cooling setup (no power needed) which cools 6 degree C below ambient temperatures (potentially up to 20 C below) by using a shade against direct sunlight, and then radiating out diagonally at mid-infrared frequencies which are harder to trap with greenhouse gases

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Scientists demonstrate passive cooling setup (no power needed) which cools 6 degree C below ambient temperatures (potentially up to 20 C below) by using a shade against direct sunlight, and then radiating out diagonally at mid-infrared frequencies which are harder to trap with greenhouse gases