⚙️ how
How does the greenhouse effect keep Earth warm?
Quick Answer
Greenhouse gases absorb and re-radiate heat, trapping some of the infrared energy Earth sends back into space.
The Full Story
Sunlight passes through the atmosphere and warms Earth’s surface. The planet then emits heat as infrared radiation, which greenhouse gases such as carbon dioxide, methane and water vapour absorb and re-emit in all directions. This keeps the lower atmosphere warmer than it would otherwise be. The natural greenhouse effect makes Earth habitable, but extra greenhouse gases from human activities are strengthening it and driving modern warming.
Key Facts
1.Greenhouse gases absorb infrared radiation
2.Earth would be much colder without the natural greenhouse effect
3.Carbon dioxide and methane are major greenhouse gases
YouTube Angle
Suggested video title for this topic:
"Why is Earth warm enough for life instead of freezing cold?"
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