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Global Warming vs. The Greenhouse Effect: What's the Difference?

One is a natural process; the other is what happens when we overdo it. The greenhouse effect is the natural way certain gases trap heat in the atmosphere — without it, Earth would be frozen. Global warming is the extra, harmful warming that happens when human activity pumps in more of those gases, trapping too much heat. The greenhouse effect is the mechanism; global warming is the result of strengthening it.

See the difference, explained visually.
Watch a 2-minute animated lesson comparing global warming and the greenhouse effect.
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At a glance

Global WarmingThe Greenhouse Effect
What it isExtra warming of the planetNatural heat-trapping process
Natural or human?Mainly human-causedNatural (but enhanced by humans)
Good or bad?HarmfulEssential — keeps Earth livable
RelationshipThe resultThe mechanism behind it
CauseToo many greenhouse gasesGreenhouse gases trapping heat

Which should you use?

Global Warming

Use 'global warming' for the harmful temperature rise caused by humans adding extra greenhouse gases.

The Greenhouse Effect

Use 'the greenhouse effect' for the natural, necessary process of gases trapping heat — which becomes a problem only when we strengthen it too much.

Frequently asked questions

Is the greenhouse effect bad?
No — the natural greenhouse effect is essential; without it Earth would be about 33°C colder and frozen. The problem is the enhanced effect from human-added gases, which causes global warming.
How are they connected?
The greenhouse effect is the mechanism that traps heat. Global warming happens when humans add extra greenhouse gases, strengthening that effect and trapping too much heat.
What gases are involved?
Mainly carbon dioxide, methane, water vapour, and nitrous oxide. Human activity has raised CO₂ the most, intensifying the greenhouse effect.

Learn more about each

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