Sentences with phrase «runaway greenhouse warming»

As the planet warmed, large amounts of frozen methane gas under the ocean might have been released to trigger runaway greenhouse warming, Ward said.

I don't care about whether runaway greenhouse warming or volcanism or a celestial impact was what caused the atmosphere to become so dominated by CO2, only that CO2is keeping Venus» surface hot.

Runaway greenhouse warming can occur for really extreme conditions (Venus at present, Earth in maybe 5 billion years time when the sun becomes a red giant), but is not a possibility for the next hundred years.

Not exact matches

Climate scientists tell us that to keep the rise of global temperature above the pre-industrial level at below 1.5 degrees Celsius (2.7 degrees Fahrenheit) in order to avoid runaway global warming, the world must cut greenhouse gas emissions by 15 percent per year starting in 2020.

The science says that industrial states like New York must get to 100 % clean energy and zero net greenhouse gas emissions by 2030 if the planet is to avert runaway global warming and climate catastrophe,» Hawkins said.

«Significant» reductions needed The U.N. Environment Programme's «Emissions Gap 2012» report cautions that even if nations meet their strictest pledges, the world will not be able to cut its output of greenhouse gases in time to prevent runaway global warming (ClimateWire, Nov. 21).

It may seem surprising to people, but you can look at something like Mars, which has a very thin atmosphere, and you can look at something like Venus which we tend to think of as sort of having this rather heavy, clouded atmosphere, which [is] hellishly warm because of runaway greenhouse effect, and on both of those planets you are seeing this phenomenon of the atmosphere leaking away, is actually what directly has led to those very different outcomes for those planets; the specifics of what happened as the atmosphere started to go in each case [made] all the difference.

Release of methane hydrates has previously been suggested as a mechanism to drive runaway greenhouse events, as warming oceans releases trapped methane that causes further warming and releases more methane.

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.

On a related note, is a «runaway greenhouse» effect impossible, given the current data and understanding about global warming?

Regarding «runaway greenhouse», we've found parameter values in our AGCM + slab ocean model that seem to generate a runaway warming under 2xCO2.

The United Nations scientific community is pointing to the overwhelming evidence that global warming, from increased greenhouse gas emissions, is propelling us towards an irreversible runaway melting of the ice caps and northern permafrost while rising temperature cause massive forest fires.

It would seem to be required that very drastic warming of the deep ocean is the only way that this source of Methane would be released and trigger a «runaway» greenhouse warming.

Because if it dose we might be stuck down the rabit whole for good because of runaway global warming caused by more bushfires and more melting of the permafrost releasing greenhouse gases and establishing a positive feedback loop.

Regarding «runaway greenhouse», we've found parameter values in our AGCM + slab ocean model that seem to generate a runaway warming under 2xCO2.

A «runaway greenhouse effect» occurs when something warms the planet, triggering positive feedbacks which warm it further; however, even this does not mean the planet continues warming infinitely, forever.

About 1980ish, some old ideas like the greenhouse effect were brought out of mothballs and re-examined with new tools and techniques; simultaneously several researchers and theoreticians released their notes, published, or otherwise got together and there was a surprising consilience and not a small amount of mixing with old school hippy ecologism on some of the topics that became the roots of Climate Change science (before it was called Global Warming); innovations in mathematics were also applied to climate thought; supercomputers (though «disappointing» on weather forecasting) allowed demonstration of plausibility of runaway climate effects, comparison of scales of effects, and the possibility of climate models combined with a good understanding of the limits of predictive power of weather models.

Technology will advance far enough during that time to make the issue of runaway warming or climate change tipping points from human greenhouse gas emissions moot historical footnotes.

that cloud response to warming acts similarly to the eye's iris, opening to let more heat radiate out to space as temperature rises and closing to hold more heat in as temperature falls, and generally supports the understanding that Earth's climate is self - regulating and therefore not prone to a «tipping point» or a «runaway greenhouse effect» or «catastrophic warming.»..

«A recent article in The Gisborne Herald said «warming has been accelerating over the past 20 years», and there is «a runaway greenhouse effect», and «rising sea levels», but none of these things are real.

As it stands there's no empirical evidence of any sort that CO2 causes climate warming, and indeed now the ipcc is maintaining that CO2 is both a cause and an effect of temperature change, which, unless CO2 was only an insignificant contributor to warming, would without a doubt lead to a runaway greenhouse with boiling oceans.

Endangered Species Act protection is necessary to safeguard warming - threatened mountain species from all threats, as well as protecting their habitats — and the planet — from runaway global warming by helping spur strong measures to reduce greenhouse gas emissions on the local, national and international scale.

We will learn some things about the CO2 greenhouse effect you have probably never heard in the media, such as the fact that warming from CO2 is actually a diminishing return phenomenon whose effect is asymptotic or essentially capped, making it hard to understand the prevalence of wild, open - ended temperature runaway scenarios.

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.

Actually I think the claim is that CO2 warming (but mysteriously not «natural» warming) triggers other positive feedbacks causing a runaway effect (I won't call it «greenhouse» because that's a misnomer).

The runaway greenhouse effect has several meanings ranging from, at the low end, global warming sufficient to induce out - of - control amplifying feedbacks, such as ice sheet disintegration and melting of methane hydrates, to, at the high end, a Venus - like hothouse with crustal carbon baked into the atmosphere and a surface temperature of several hundred degrees, a climate state from which there is no escape.

The Global Warming doomsayers say this increase in the CO2 in our atmosphere is producing a greenhouse effect that will result in runaway Global Warming, melting ice caps and glaciers, flooding the shorelines, destroying our crops and making our planet unlivable.

Worm greenhouse emissions (primarily methane) from our global ocean sediment buddies could lead to that proverbial tipping point - initiating a runaway global warming and catastrophic climate change scenario.

While high CO ₂ levels have been present in Earth's atmosphere before (e.g., during the Cambrian and Archaean) without initiating either the moist or runaway greenhouse state, never has the rate of warming been annual in scale as today.

Without convection you could get a «runaway» greenhouse effect, but since the atmosphere isn't a closed system with physical barriers, convection is negative feedback to warming.