Question

what is global warming?


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Answer 1

Global warming is the long-term heating of Earth's climate system observed since the pre-industrial period (between 1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth's atmosphere.

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Answer 2

Global Warming :-

Global warming is the phenomenon of a gradual increase in the temperature near the earth’s surface.

This phenomenon has been observed over the past one or two centuries..