Greenhouse effect: heating of the earth's atmosphere due to an increase in gases like carbon dioxide.

UNESCO: L O S S A R Y

Moons that orbit their planet too closely will experience strong tidal heating and a runaway greenhouse effect that would boil away any surface water.

MSN: News editor

Beyond the heating effects of carbon dioxide and the other greenhouse gases, there are the effects of converting land from one use to another and filling parts of the sky with soot and smog.

ECONOMIST: Climate change