Chuck, the quote seems pretty accurate to me, but some will cavil about the use of the phrase «out - of - control
runaway warming process» for «each» of those systems; but there are certainly feedbacks associated with most of them that will indeed drive toward more warming, though some effects are going to be stronger and faster than others.
Each of these ecosystem collapses could trigger an out - of - control
runaway warming process.
Not exact matches
Another
process knows as a «
runaway greenhouse» occurs due to the increased greenhouse effect of water vapor in the lower atmosphere, which further drives evaporation and more
warming.
This chemical weathering
process is too slow to damp out shorter - term fluctuations, and there are some complexities — glaciation can enhance the mechanical erosion that provides surface area for chemical weathering (some of which may be realized after a time delay — ie when the subsequent
warming occurs — dramatically snow in a Snowball Earth scenario, where the frigid conditions essentially shut down all chemical weathering, allowing CO2 to build up to the point where it thaws the equatorial region, at which point
runaway albedo feedback drives the Earth into a carbonic acid sauna, which ends via rapid carbonate rock formation), while lower sea level may increase the oxidation of organic C in sediments but also provide more land surface for erosion... etc..
It's possible to imagine a scenario where, once we hit x degrees of
warming, we hit a
runaway process that jolts us some additional y degrees of
warming, and then stops.
In fact if a strong self sustaining unforced
warming of the oceans as we have seen, around 0.8 W / M ^ 2 does exist, the climate of the earth would be in the
process of an unstable
runaway condition.
You continued, «In fact if a strong self sustaining unforced
warming of the oceans as we have seen, around 0.8 W / M ^ 2 does exist, the climate of the earth would be in the
process of an unstable
runaway condition.»
This relative
warming is what makes the rise a
runaway process until almost all the water vapor has condensed out.
Anthropogenic Global
Warming, however, is the theory that CO2 produced by humans by industrial
processes, but mainly fossil fuel combustion, will cause the Earth to
warm unnaturally and produce a
runaway greenhouse effect.