"Runaway warming" refers to an extreme and rapid increase in global temperatures. It suggests that once the process begins, it becomes difficult to stop or slow down, accelerating climate change and causing severe consequences like rising sea levels and extreme weather events.
Full definition
In the past no tipping point has ever been known to have occurred as a result
of runaway warming from extra water vapour so how have we been persuaded to fear it so much?
The above plots of temperature datasets from different climate agencies / organizations clearly indicate that the feared accelerating and
runaway warming predicted did not happen, ever.
There's no evidence of
runaway warming in the past 4.5 billion years, with CO2 levels higher than today most of the time — up to 10 times higher — yes, geologists are scientists too.
There was never
runaway warming on Venus, and a bit more attention to the evidence, as Harry Huffman has done, shows the Venusian CO2 = warming is simply bad science.
NASA climate scientist James Hanson has warned of a «Venus effect,» in
which runaway warming turns Earth into an uninhabitable desert, with a surface temperature high enough to melt lead, sometime in the next few centuries.
There are continuing major questions about the future of the great ice sheets of Greenland and West Antarctica; the thawing of vast deposits of frozen methane; changes in the circulation patterns of the North Atlantic; the potential
for runaway warming; and the impacts of ocean carbonization and acidification.
This will, in turn,
trigger runaway warming of the planet and fractured weather patterns like extra-prolonged droughts or sudden, torrential rains as the entire world begins to sizzle!
My only point is that when folks like Al Gore talk
about runaway warming and Earth becoming Venus, they are really implying runaway positive feedback effects with feedback factors greater than one.
The climate science fact that huge modern CO2 emissions did not generate the
expected runaway warming over the long - term, nor even over the shorter - term, now has the establishment science journals questioning the obvious - how was the IPCC so wrong?
The longer global warming continues, the greater the risk of «waking the sleeping giants» — major feedbacks such as ice sheet collapse, methane «burps,» or ecosystem collapse — that could ignite abrupt or
runaway warming beyond our control.
An environmental activist told me that re-radiation occurs repeatedly from greenhouse gas molecules with a
consequent runaway warming effect.
1) It appears AGW that melts arctic freshwater also results in a negative feedback that acts
against runaway warming; more warm Gulf Stream volume eventually results in less cool volume from Antarctic subpolar current to North equatorial at the base of Cuba.
As temperatures fail to meet alarmist predictions, and ever - increasing dire warnings of catastrophic,
accelerating runaway warming are being refuted by simple observation, the global warming apologists keep rolling out the excuses.
Positive feedback
means runaway warming «One of the oft - cited predictions of potential warming is that a doubling of atmospheric carbon dioxide levels from pre-industrial levels — from 280 to 560 parts per million — would alone cause average global temperature to increase by about 1.2 °C.
That means there would be
runaway warming there if heat from the deep tropics couldn't be exported to higher latitudes.
Lenton warned the meeting that global warming might trigger tipping points that could
cause runaway warming or catastrophic sea - level rise.
And keep in mind that these are the optimistic scenarios in which warming is more or less stabilized at 4 degrees Celsius and does not trigger tipping points beyond
which runaway warming would occur.
Summary: «Boiling» oceans and the ludicrous Venus -
like runaway warming are not happening as predicted by NASA «experts» - the likelihood of either is literally in the realm of the Twighlight Zone
The scariest parts of the planetary emergency narrative popularized by Gore and other climate doomsters are an Atlantic Ocean circulation shutdown that plunges Europe into a mini-ice age; disintegration of the Greenland and West Antarctic ice sheets that would raise sea levels as much as 20 feet in our lifetimes or those of our children and grandchildren; and
runaway warming from melting frozen methane deposits that in the worst case could cause mass species extinctions.