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

1.
efeito estufa
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.
O efeito estufa é um processo natural que aquece a superfície da Terra.
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Increased carbon dioxide in the atmosphere enhances the greenhouse effect.
O aumento do dióxido de carbono na atmosfera intensifica o efeito estufa.