Search results
Results from the WOW.Com Content Network
What do we mean by a runaway greenhouse effect? Don't know? the presence of many long, tall cliffs. What observational evidence supports the idea that Mercury once shrank by some 20 kilometers in radius? the presence of canali, discovered in the late 1800s by Giovanni Schiaparelli and mapped by Percival Lowell.
A runaway greenhouse effect occurs when greenhouse gases accumulate in the atmosphere through a positive feedback cycle to such an extent that they substantially block radiated heat from escaping into space, thus greatly increasing the temperature of the planet.
What do we mean by a runaway greenhouse effect? A greenhouse effect that keeps getting stronger until all of a planet's greenhouse gases are in its atmosphere. What causes the release of oxygen into Earth's atmosphere?
Several billion years ago, a runaway greenhouse effect turned all surface water into vapour, which then leaked slowly into space. This occurs when a planet absorbs more energy from the sun than it can radiate back to space.
A runaway greenhouse effect is essentially what comes after the point of no return. It occurs when positive feedback loops increases the amount of greenhouse gases in our atmosphere exponentially. The process is started by an increase surface-water being evaporated.
Scientists investigate whether continued warming on Earth could cause a super greenhouse effect in tropical regions to “run away” as it might have on Venus.
The greenhouse effect occurs for all planetary atmospheres containing greenhouse gases, and is responsible for their being warmer than would be the case otherwise. The greenhouse effect by itself could not account for the conditions that we find on Venus.
Planetary geologists think there is good evidence that Venus was the victim of a runaway greenhouse effect which turned the planet into the boiling hell we see today. A similar catastrophe...
The runaway greenhouse effect occurs when a planet's atmosphere traps so much heat that the temperature continuously rises uncontrollably. This leads to extreme surface conditions, making the planet inhospitable.
The ultimate climate emergency is a ‘runaway greenhouse’: a hot and water-vapour-rich atmosphere limits the emission of thermal radiation to space, causing runaway warming. Warming ceases only after the surface reaches approximately 1400 K and emits radiation in the near-infrared, where water is not a good greenhouse gas.