Sentences with phrase «human forced warming»

In effect, what we see is that sea level rise due to human forced warming of the globe is starting to have a greater and greater impact on these shores.

Not exact matches

«Because of this and a better understanding of how forcing terms add up, we are able to sum the radiative forcings and, for the first time, come up with the statement that we have very high confidence that humans have had a warming influence since preindustrial times.»

A weaker sun might slow human - induced climate change slightly but when the sun eventually recovers force, global warming would heat up with even more of a vengeance.

Ultimately, Russell hopes his work will help to predict how the region might be influenced by human - forced global warming.

Not long after potent evidence began to emerge in the 1980s and 1990s that global warming is happening and that human fingerprints are all over it, countervailing forces showed up to deny it, she said.

This new research shows that in addition to a discernible contribution from natural forcings and human - induced global warming, the large - scale difference between Atlantic and Pacific ocean temperatures plays a fundamental role in causing droughts, and enhancing wildfire risks.

«The main result supports and extends earlier work, showing that human forcing contributes to changing winds that contribute to subsurface ocean warming, affecting some grounding zones of the ice sheet,» Alley said.

Model simulations of 20th century global warming typically use actual observed amounts of atmospheric carbon dioxide, together with other human (for example chloroflorocarbons or CFCs) and natural (solar brightness variations, volcanic eruptions,...) climate - forcing factors.

Soon is a leading skeptic of the widely accepted science surrounding climate change, In the International Journal of Public Opinion Research, a study titled «The Structure of Scientific Opinion on Climate Change» found that 97 percent of scientists surveyed believed global warming already is ongoing, with 84 percent of scientists surveyed believing human - produced greenhouse gases were the driving force behind the change.

[emphasis added] Bast: «We believe that climate has warmed in the second half of the 20th Century, we believe that there is probably a measurable human impact on climate but it's probably very small, we think that natural forces probably overwhelm any impact that human activity can have, that computer models are too unreliable to forecast what the future might hold for climate and finally that a modest amount of warming is probably going to be, on net, beneficial both to human beings and the ecosystem.

Predicted changes in orbital forcing suggest that the next glacial period would begin at least 50,000 years from now, even in absence of human - made global warming (see Milankovitch cycles).

While observational data from satellites show less warming than predicted by most models, Santer and his co-authors demonstrate that the observed warming is consistent with models including both human and natural forcings, but inconsistent with models using only natural forcings and variability.

Given the unprecedented rapidity of the human - made climate forcing, it is difficult to establish how soon slow feedbacks will become important, but clearly slow feedbacks should be considered in assessing the «dangerous» level of global warming, as discussed in the next section.

The long - term global warming trend is predominantly a forced climate change caused by increased human - made atmospheric gases, mainly CO2 [1].

Uninfected humans outside Jerusalem, Palestinians among them, are allowed into the city, suggesting a warming belief in unity against a third force.

When a «Romeo and Juliet» type of romance emerges between a zombie (Nicholas Hoult) and a living human (Teresa Palmer), it forces both the cold dead and the warm bodies to confront their differences.

A unifying theme among all the artwork is that of an intuitive, positive, human force — one that is authentic, smart, original, and inventive — and always with a warm beating heart.

If human - induced global warming, among other factors such as human - driven pollution and human - forced overpopulation, serve decisively to precipitate the massive extinction of biodiversity, the irreversible degradation of Earth's environment and the reckless dissipation of its resources, so as to make our planetary home unfit for life as we know it, then is no one to bear responsibility for such a colossal wreckage as we could help to perpetrate in these early years of Century XXI?

The fact that human factors are forcing current warming trends is one outcome of those investigations.

[1] CO2 absorbs IR, is the main GHG, human emissions are increasing its concentration in the atmosphere, raising temperatures globally; the second GHG, water vapor, exists in equilibrium with water / ice, would precipitate out if not for the CO2, so acts as a feedback; since the oceans cover so much of the planet, water is a large positive feedback; melting snow and ice as the atmosphere warms decreases albedo, another positive feedback, biased toward the poles, which gives larger polar warming than the global average; decreasing the temperature gradient from the equator to the poles is reducing the driving forces for the jetstream; the jetstream's meanders are increasing in amplitude and slowing, just like the lower Missippi River where its driving gradient decreases; the larger slower meanders increase the amplitude and duration of blocking highs, increasing drought and extreme temperatures — and 30,000 + Europeans and 5,000 plus Russians die, and the US corn crop, Russian wheat crop, and Aussie wildland fire protection fails — or extreme rainfall floods the US, France, Pakistan, Thailand (driving up prices for disk drives — hows that for unexpected adverse impacts from AGW?)

It is also valid to say this particular warming event is occurring in a world where the forcing has been increased by human activity and «all» weather is now occurring on this new forcing path which is warming biased.

It's a theory now substantiated by physics and observations regarding total radiative forcing and sensitivity, and in our current case of warming attributable to increased forcing agents form human / industrial means we are experiencing a change in trends pertaining to weather events driven by total change factors.

My understanding is that, in addition to the slight cooling trend leading up to ~ 1850, the meaning is that the human forcings are both warming and cooling.

After each of its four reports so far — including the pivotal 2007 assessment that concluded with 90 percent confidence that greenhouse gases from humans were the main force behind recent warming --- the panel leadership has met to consider changing how it works.

A task force assembled by the American Psychological Association hopes to spur more research on the role of the human mind in shaping the behaviors resulting in rising greenhouse - gas emissions as well as on traits that can impede an effective response to global warming and similar slow - building environmental risks.

What we have here is a situation in which MM05 attempts to make a point to discredit climate warming which — even if they were correct — would not affect the indicated existence of human forcing of climate via GHG emissions / land use changes occurring now.

Here are some possible choices — in order of increasing sophistication: * All (or most) scientists agree (the principal Gore argument) * The 20th century is the warmest in 1000 years (the «hockeystick» argument) * Glaciers are melting, sea ice is shrinking, polar bears are in danger, etc * Correlation — both CO2 and temperature are increasing * Sea levels are rising * Models using both natural and human forcing accurately reproduce the detailed behavior of 20th century global temperature * Modeled and observed PATTERNS of temperature trends («fingerprints») of the past 30 years agree

This paper builds on a massive data analysis that has been heavily vetted for more than a year, but pushes into new terrain with particularly strong conclusions about the human forces driving warming.

The scientists running the project stressed that it is not a formal forecast, but instead aimed at comparing different ways of analyzing what mix of forces — from winds and currents to any long - term contribution from human - caused global warming — is at work.

Nature (with hopefully some constructive input from humans) will decide the global warming question based upon climate sensitivity, net radiative forcing, and oceanic storage of heat, not on the type of multi-decadal time scale variability we are discussing here.

I've been to the Arctic three times for the newspaper since 2003 — visiting the North Slope, North Pole, and Greenland to examine what mix of human and natural forces is driving the warming and ice retreats and the implications of having increasing amounts of open water in summers in a region increasingly seen as a resource trove and shortcut for shipping.

Johanessen et al conclude that the consistent appearance of recent warming with GHGs simulated supports the interpretation that the current warming is a forced response to GHGs, of which the increase is overwhelmingly human driven.

It is a system that can amplify either a human warming influence or a natural one, making the task of disentangling a signal of human influence from other forces exceedingly tough.

Humans are altering the climate in diverse ways, a variety of human climate forcings are significant, and the effects of these forcings need to be responded to, even if the climate did not warm.

This shrug of resignation, so casually dismissing the downsides that science is unable to dismiss, seems to be the latest fashionable replacement for dismissal of the fact of global warming, or of its largely human origins, now that those positions are so opposed to the scientific consensus that they have been forced to the fringe.

There is no question, for course, that the human addition of carbon dioxide is a major climate forcing, both with respect to its warming influence but also its biogeochemical effect.

even as we are probably being propelled into a new ice age, by forces independent of human activity, the warming oceans, most probably largely caused by undersea volcanic activity in the pacific ocean, may cause a continuing warming trend in alaska.

The suggestion for a counter-investigative science force — or red team approach — was presented in prepared testimony by scientists known for questioning the influence of human activity on global warming.

Italy, Egypt, the Persian Gulf, Pakistan, Indiaand Japan have now all experienced mass hospitalizations and deaths due to the excess heat of a world forced to rapidly warm by human fossil fuel emissions.

Nearly half of meteorologists and atmospheric science experts don't believe that human activities are the driving force behind global warming, according to a survey by the American Meteorological Society.

A pattern that we'd expect concordant with world ocean warming and Greenland melt as a result of human - forced climate change.

Putting it all together, Figure 2 compares the warming from human caused greenhouse gases to the total radiative forcing from all human sources.

a) Our models can not explain the early 20th century warming period b) We know that the (statistically indistinguishable) late 20th century warming was caused principally by human - caused forcing.

This cooling has been set off by an increase in fresh water melt outflows from Greenland as glacial melt there has accelerated concordant with human - forced warming.

Black — Observed Warming, Green — greenhouse gases, Orange — total Influence from human factors, Yellow — other human factors, Blue — Natural Factors (volcanos and solar forcing).

2 — For future planning, it is more likely the world will be warmer rather than colder even if you exclude potential human - caused forcing (i.e. based on a continuation of the current overall trend, which has been broadly similar for a couple of centuries).

Ian Blanchard writes» — For future planning, it is more likely the world will be warmer rather than colder even if you exclude potential human - caused forcing (i.e. based on a continuation of the current overall trend, which has been broadly similar for a couple of centuries).»

The summary, released on Friday in Paris, was the first from the group to pinpoint with greater than 90 percent certainty that humans had become the main force driving warming and that centuries of increasing temperatures and seas could be blunted only if emissions of heat - trapping gases were promptly reduced.

In the case of climatology, I suppose this should have involved an experiment / investigation showing that recent warming can ONLY or MOSTLY be attributed to human forcings (e.g.; CO2 emissions) and not to natural and / or unknown causes.

«It is a mystery that has given cover to forces arrayed against the reality of human - driven global warming.