Question

what is global warming​

Answer 1

Answer:

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.

Answer 2

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Global warming describes the current rise in the average temperature of Earth's air and oceans. Global warming is often described as the most recent example of climate change.