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A runaway greenhouse effect will occur when a planet's atmosphere contains greenhouse gas in an amount sufficient to block thermal radiation from leaving the planet, preventing the planet from cooling and from having liquid water on its surface.
A runaway greenhouse effect is a tipping point so extreme that oceans evaporate [182] and the water vapour escapes to space, an irreversible climate state that happened on Venus. [183] A runaway greenhouse effect has virtually no chance of being caused by people.
The greenhouse effect on Earth is defined as: "The infrared radiative effect of all infrared absorbing constituents in the atmosphere.Greenhouse gases (GHGs), clouds, and some aerosols absorb terrestrial radiation emitted by the Earth's surface and elsewhere in the atmosphere."
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The state should not be confused with a hypothetical runaway greenhouse effect, which is an irreversible tipping point that corresponds to the ongoing runaway greenhouse effect on Venus. [8] The IPCC states that "a 'runaway greenhouse effect'—analogous to [that of] Venus—appears to have virtually no chance of being induced by anthropogenic ...
Similarly, several natural events may pose a doomsday threat, including a highly virulent disease, the impact of an asteroid or comet, runaway greenhouse effect, and resource depletion. There may be the possibility of an infestation by an extraterrestrial lifeform. [25]
"Politically, if we don't recognize the lessons of science about climate change, well, that will be that," says Rhodes, referring to the rising sea levels, natural disasters, and mass migrations ...
The U.S. will no longer allow the import of seafood linked to the bycatch of marine mammals. Each year, over 650,000 marine mammals, including seals, whales, and dolphins, are killed by ...