Debunking the 'Heat Only Rises' Claim
AAP FactCheck examines the claim that atmospheric carbon dioxide cannot warm the Earth's surface because "heat only goes up".
Experts assert that warm air does rise, but this does not preclude atmospheric carbon dioxide from warming the Earth's surface. They explain that heat is transferred in all directions, including downwards, through radiation.
"Having reached the air, CO2 no longer has any possible heating effect," and "Have you forgotten what we learned at school, that heat goes UP??"
This process, experts say, can be observed using scientific instruments, contradicting the claim that CO2's warming effect is limited to the sky.
Author's summary: Climate science debunks the "heat only rises" claim.
- CO2 transfers heat in all directions, including downwards, via radiation.
- Warm air rises, but this does not mean CO2 cannot warm the Earth's surface.
- Scientific instruments can observe this process.
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