Sentences with phrase «extreme greenhouse warming»

Not exact matches

This implies that risks are not too big or overarching (like resource scarcity, rising levels of atmospheric CO2, or global warming) but are more focused e.g. extreme weather, increased greenhouse gas emissions from agriculture or from energy use, or a lack of fresh water.

This means that the science of climate change may partially undergo a shift of its own, moving from trying to prove it is a problem (it is now «very likely» that greenhouse gases in the atmosphere have already caused enough warming to trigger stronger droughts, heat waves, more and bigger forest fires and more extreme storms and flooding) to figuring out ways to fix it.

They said that two extreme climate periods — the Medieval Warming Period between 800 and 1300 and the Little Ice Age of 1300 to 1900 — occurred worldwide, at a time before industrial emissions of greenhouse gases became abundant.

As average U.S. temperatures warm between 3 °F and more than 9 °F by the end of the century, depending on how greenhouse gas emissions are curtailed or not in the coming years, the waves of extreme heat the country is likely to experience could bend and buckle rails into what experts call «sun kinks.»

The end of the year also saw international negotiators agree to a plan to limit greenhouse gas emissions to keep that temperature from rising beyond 2 °C (3.6 °F) above pre-industrial levels to limit the adverse impacts of warming, such as melting glaciers, rising sea levels and potentially more extreme weather.

Vavrus, S., J.E. Walsh, W.L. Chapman, and D. Portis, 2006: The behavior of extreme cold air outbreaks under greenhouse warming.

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Although the Cretaceous, 145 to 66 million years ago, was a period known for its extreme greenhouse climate, a new study shows that this ancient warming was interrupted with a significant cold snap.

Human activities are releasing greenhouse gases more than 30 times faster than the rate of emissions that triggered a period of extreme global warming in the Earth's past, according to an expert on ancient climates.

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.

A lot of reseach energy is being devoted to the study of Methane Clathrates — a huge source of greenhouse gases which could be released from the ocean if the thermocline (the buoyant stable layer of warm water which overlies the near - freezing deep ocean) dropped in depth considerably (due to GHG warming), or especially if the deep ocean waters were warmed by very, very extreme changes from the current climate, such that deep water temperatures no longer hovered within 4C of freezing, but warmed to something like 18C.

While it is «likely» that anthropogenic influences are behind the changes in cold days and warm days, there is only «medium confidence» that they are behind changes in extreme rainfall events, and «low confidence» in attributing any changes in tropical cyclone activity to greenhouse gas emissions or anything else humanity has done.

Whereas this phenomena has been principally related to a natural extreme event, its impacts may very well forebode the impact that a projected warming of surface temperatures could have by the end of the 21st Century due to greenhouse gas increases.

But in 2009, as I reported more and more on the inherent threat of climate extremes in some of the world's poorest places (sub-Saharan Africa, particularly) I became concerned that the uncertain impact of greenhouse - driven warming paled beside other drivers of risk (persistent poverty, doubling populations, and the existing pattern of super-drought).

The journal Nature has published a helpful update on scientists» efforts to narrow one of the biggest gaps in climate science — the inability to reliably gauge the role of greenhouse - driven warming in determining the intensity of the kinds of extreme climate events that matter most to societies — from hurricanes to heat waves.

There is nothing «natural» about these extremes of weather over the last 2 years, or about the unprecedented ozone hole in the Arctic last year (troposphere warming from greenhouse gases caused stratospheric cooling to below threshold temperature for polar stratospheric cloud generation and ozone destruction).

The first thorough federal review of research on how global warming may affect extreme climate events in North America forecasts more drenching rains, parching droughts (especially in the Southwest), intense heat waves and stronger hurricanes if long - lived greenhouse gases continue building in the atmosphere.

Here's a description of the uncertainty from Richard Seager, a senior research scientist at the Lamont Doherty Earth Observatory of Columbia University long focused on greenhouse warming and extreme drought:

Here's a followup to my piece on how greenhouse - driven warming is loading the dice toward more hot weather extremes.

While there's evidence that increasing greenhouse heating of the planet is exacerbating hot spells and extreme downpours, and may be related to hurricane intensity (but not frequency), a combination of imprecise records and deep complexity in the mix of forces that generate killer tornadoes has clouded any link to global warming.

Pressing the frontiers of climate science and related research is vital, but it's wishful thinking to expect further science to substantially narrow uncertainties on time scales that matter when it comes to regional or short - term climate forecasting, the range of possible warming from a big buildup of carbon dioxide, the impact of greenhouse forcing on rare extremes and the like.

[28] I fear the irrational policies of extreme environmentalists far more that a warmer climate on this relatively cold planet (14.5 C global average temperature today compared with 25C during the Greenhouse Ages.

The extremes of the 1930's and 1950's are not attributable to greenhouse warming and are associated with natural climate variability (and in the case of the dustbowl drought and heat waves, also to land use practices).

He finds that, while both mean snowfall and extreme snowfall decrease as the climate warms due to the influence of greenhouse gasses, the reduction in daily snowfall extremes is smaller than the reduction in mean snowfall.

Over the last three decades, five IPCC «assessment reports,» dozens of computer models, scores of conferences and thousands of papers focused heavily on human fossil fuel use and carbon dioxide and greenhouse gas emissions, as being responsible for «dangerous» global warming, climate change, climate «disruption,» and almost every «extreme» weather or climate event.

«New scientific evidence that the world's oceans... warmed significantly... ocean energy is the primary cause of extreme climate events... increasing the number of insurance - relevant hazards... a near irreversible shift... even if greenhouse gas emissions stopped, ocean temperatures would keep rising.»

[18] The report determines that manmade greenhouse gas emissions will accelerate sea - level rise, increase the intensity and frequency of extreme weather, and warm the planet at an unsustainable rate, adversely affecting everything from human and ecosystem health to transportation, forestry, and agriculture.

Could show, for example, that we're in for extreme warming even with drastic reduction in the emission of greenhouse gasses.

These results suggest that as the Arctic continues to warm faster than elsewhere in response to rising greenhouse - gas concentrations, the frequency of extreme weather events caused by persistent jet - stream patterns will increase.

As reported by Chris Mooney at Mother Jones at the time (now a journalist at the Washington Post), the draft report warned unequivocally that unchecked greenhouse gas emissions would cause the global warming trend to «accelerate significantly,» bringing more heat waves and weather extremes, severe storms, rising seas, devastating floods, prolonged droughts, and more.

To quantify the impact of changes in short - lived climate pollutants and regional climate forcings, in addition to the impact of warming induced by greenhouse gases, on weather extremes in Africa.

Some of the meteorological threats, like extreme downpours and heat waves, are sure to worsen in a human - heated climate, with warming from elevated levels of heat - trapping carbon dioxide and other greenhouse gases seen by many climate scientists as already contributing to the severity of rains like those over Texas in recent days and Louisiana last year.

The link between adverse impacts such as more wildfires, ecosystem changes, extreme weather events etc. and their mitigation by reducing greenhouse gas emissions hinges on detecting unusual events for at least the past century and then actually attributing them to human caused warming.

the temperature amplified by global warming and ubiquitous surface heating from elevated greenhouse gas amounts, extreme drought conditions can develop.

@jrincart who said «With the temperature amplified by global warming and ubiquitous surface heating from elevated greenhouse gas amounts, extreme drought conditions can develop.

My answer to the narrowed question: • Identify adaptation policies that can be implemented to reduce impacts of extreme weather events (which will happen with or without greenhouse driven global warming) • Research on nuclear energy to reduce the stigma of nuclear generation, e.g., fast reactors (Generation 4 reactors) or thorium fueled.

Basic physics, more simply stated the actual physical properties of how things work, indicates that an accumulation of heat - trapping greenhouse gases is warming the planet, resulting in an increase in energy and water vapor and particularly in an increase of extremes.

If the negative effects of climate change, the rising air temperatures, the changing precipitation, the prevalence of extreme weather events, and the rising sea levels, become too disruptive or costly, we have the option to deploy certain climate altering technologies to remove greenhouse gases directly from the air or reflect sunlight back out of the atmosphere before it warms the earth.

And researchers report in the journal Science Advances that unless there are serious reductions in global emissions of carbon dioxide and other greenhouse gases that drive global warming and could trigger catastrophic climate change, the most extreme, once - in -25-years heat waves could increase wet bulb temperatures now at around 31 °C to 34.2 °C.

Changes in the heating and cooling degree days are another likely extreme temperature - related effect of future greenhouse warming.

We will be able to give probabilistic estimates of the climate's transient sensitivity to greenhouse gas increases and will have an improved understanding of the response of sea ice, precipitation, and temperature extremes to warming.

By trapping the earth's heat in the atmosphere, greenhouse gases lead to warmer temperatures and all the hallmarks of climate change: rising sea levels, more extreme weather, heat - related deaths, and increasing transmission of infectious diseases like Lyme.

By consulting climate records and modeling extreme events with and without added greenhouse gases, scientists can talk about how much global warming has increased the chances of extreme events — without blaming any one event on warming.

Just two degrees of warming will double the length of extreme heatwaves and affect vulnerable regions in just a few decades,» Eyasu warned, urging climate negotiators in Bonn to speed up reductions of greenhouse gas emissions and bolster efforts to aid less developed countries.

The report confirms that most of the observed increase in globally averaged temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations and that discernible human influences now extend to other aspects of climate, including ocean warming, continental - average temperatures, temperature extremes and wind patterns.

The extreme weather risk to communities like Ellicott City will only increase as the Earth's atmosphere continues to warm from rising greenhouse gas emissions.

For even if the models are proven to be wrong with respect to their predictions of atmospheric warming, extreme weather, glacial melt, sea level rise, or any other attendant catastrophe, those who seek to regulate and reduce CO2 emissions have a fall - back position, claiming that no matter what happens to the climate, the nations of the Earth must reduce their greenhouse gas emissions because of projected direct negative impacts on marine organisms via ocean acidification.

Recent high profile heat waves, such as the one in Texas and Oklahoma in the summer of 2011, raise the question of whether these extreme events are related to the on - going global warming trend, which has been attributed with a high degree of confidence to human - made greenhouse gases (4).

But it is still unclear how much of this warming and extreme weather is attributable to our accelerated release of greenhouse gases, and how much too natural causes.

The researchers cautioned that this extreme event provides a glimpse into the region's future as greenhouse gases continue to increase, and the signal of a warming climate, even at this regional scale, begins to emerge more clearly from natural variability in coming decades.