greenhouse effect
US /ˈɡriːn.haʊs ɪˌfekt/
UK /ˈɡriːn.haʊs ɪˌfekt/

1.
effet de serre
the trapping of the sun's warmth in a planet's lower atmosphere due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface
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The greenhouse effect is a natural process that warms the Earth's surface.
L'effet de serre est un processus naturel qui réchauffe la surface de la Terre.
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Increased carbon dioxide in the atmosphere enhances the greenhouse effect.
L'augmentation du dioxyde de carbone dans l'atmosphère accentue l'effet de serre.