Sentences with phrase «warming effect of greenhouse gases in»

Scientists have modelled the expected temperature drop over the 21st century due to waning solar activity — and they found that the change is likely to be dwarfed by the much bigger warming effect of greenhouse gases in the atmosphere.

Forster's chapter also reports on another important uncertainty: the cooling effect of smoke and other aerosols, which some argued almost negated the warming effect of greenhouse gases in the short term.

Not exact matches

The LCA examined the effects of a 1 kilogram industry - average corrugated product manufactured in 2014 on seven environmental impact indicators: global warming potential (greenhouse gas emissions), eutrophication, acidification, smog, ozone depletion, respiratory effects, fossil fuel depletion; and four inventory indicators: water use, water consumption, renewable energy demand, and non-renewable energy demand.

Methane gas is second behind carbon dioxide in contributing to the greenhouse effect and global warming; cow flatulence and excretion account for 20 percent, or 100 million tons, of the total annual global methane emissions.

So this effect could either be the result of natural variability in Earth's climate, or yet another effect of carbon dioxide and other greenhouse gases like water vapor trapping more heat and thus warming sea - surface temperatures.

They are running two sets of climate models, one with and one without the effects of humanity's greenhouse gas emissions, to see whether drought in east Africa becomes more likely in a warming world.

Volk: Yeah, yeah that's becoming more and more of a concern as people are realizing that there is not just the greenhouse effect of CO2 being a greenhouse gas and warming the Earth up, but there is a direct chemical effect of its dissolving in the ocean as carbonic acid, and this is going to affect many marine creatures in the coming decades.

Indeed, the reduction in the emission of precursors to polluting particles (sulphur dioxide) would diminish the concealing effects of Chinese aerosols, and would speed up warming, unless this effect were to be compensated elsewhere, for instance by significantly reducing long - life greenhouse gas emissions and «black carbon.»

In a paper published this month in Geophysical Research Letters, Lovejoy concludes that a natural cooling fluctuation during this period largely masked the warming effects of a continued increase in human - made emissions of carbon dioxide and other greenhouse gaseIn a paper published this month in Geophysical Research Letters, Lovejoy concludes that a natural cooling fluctuation during this period largely masked the warming effects of a continued increase in human - made emissions of carbon dioxide and other greenhouse gasein Geophysical Research Letters, Lovejoy concludes that a natural cooling fluctuation during this period largely masked the warming effects of a continued increase in human - made emissions of carbon dioxide and other greenhouse gasein human - made emissions of carbon dioxide and other greenhouse gases.

Rather than using complex computer models to estimate the effects of greenhouse - gas emissions, Lovejoy examines historical data to assess the competing hypothesis: that warming over the past century is due to natural long - term variations in temperature.

The effects of wind changes, which were found to potentially increase temperatures in the Southern Ocean between 660 feet and 2,300 feet below the surface by 2 °C, or nearly 3.6 °F, are over and above the ocean warming that's being caused by the heat - trapping effects of greenhouse gases.

Canada, France, Germany, Italy, Japan, Russia, the U.K. and U.S. did note that they bore a large share of responsibility for the greenhouse gas pollution currently in Earth's atmosphere and its resulting warming effect.

Current state - of - the - art climate models predict that increasing water vapor concentrations in warmer air will amplify the greenhouse effect created by anthropogenic greenhouse gases while maintaining nearly constant relative humidity.

When the warming effect of other greenhouse gases is also included in the carbon budget calculations, the quantity of emissions remaining is even smaller.

Global warming in the modern era is being driven by increasing concentrations of greenhouse gases in the atmosphere, which leads to an enhanced greenhouse effect.

Such changes are driven in large part by the greenhouse effect, the trapping of greenhouse gases in Earth's atmosphere and consequent warming of the planet.

Global climate change will occur as a result of global warming resulting from the greenhouse effect caused by the retention of heat in the lower atmosphere of the Earth caused by the concentration of gases of various kinds.

** CLIMATE CHANGE LESSON ** Included in the lesson package is: The teacher version of the PowerPoint The student version of the PowerPoint Three videos embedded in the PowerPoint Student lesson handout In order, the lesson covers: Weather vs. Climate Earth's energy supply The atmosphere Greenhouse gases The greenhouse effect Enhanced greenhouse effect The role of the carbon cycle Effects of global warming Historic climate change Climate proxies What you can do The student version contains multiple blanks that need to be filled in throughout the lessoin the lesson package is: The teacher version of the PowerPoint The student version of the PowerPoint Three videos embedded in the PowerPoint Student lesson handout In order, the lesson covers: Weather vs. Climate Earth's energy supply The atmosphere Greenhouse gases The greenhouse effect Enhanced greenhouse effect The role of the carbon cycle Effects of global warming Historic climate change Climate proxies What you can do The student version contains multiple blanks that need to be filled in throughout the lessoin the PowerPoint Student lesson handout In order, the lesson covers: Weather vs. Climate Earth's energy supply The atmosphere Greenhouse gases The greenhouse effect Enhanced greenhouse effect The role of the carbon cycle Effects of global warming Historic climate change Climate proxies What you can do The student version contains multiple blanks that need to be filled in throughout the lessoIn order, the lesson covers: Weather vs. Climate Earth's energy supply The atmosphere Greenhouse gases The greenhouse effect Enhanced greenhouse effect The role of the carbon cycle Effects of global warming Historic climate change Climate proxies What you can do The student version contains multiple blanks that need to be filled in throughout tGreenhouse gases The greenhouse effect Enhanced greenhouse effect The role of the carbon cycle Effects of global warming Historic climate change Climate proxies What you can do The student version contains multiple blanks that need to be filled in throughout tgreenhouse effect Enhanced greenhouse effect The role of the carbon cycle Effects of global warming Historic climate change Climate proxies What you can do The student version contains multiple blanks that need to be filled in throughout tgreenhouse effect The role of the carbon cycle Effects of global warming Historic climate change Climate proxies What you can do The student version contains multiple blanks that need to be filled in throughout the lessoin throughout the lesson.

The warming trends in looking at numerous 100 year temperature plots from northern and high elevation climate stations... i.e. warming trends in annual mean and minimum temperature averages, winter monthly means and minimums and especially winter minimum temperatures and dewpoints... indicate climate warming that is being driven by the accumulation of greenhouse gases in the atmosphere — no visible effects from other things like changes in solar radiation or the levels of cosmic rays.

In other words, there is no warming effect of greenhouse gases and humans can carry on with Business As Usual, including massive burn of fossil fuels.

Unfortunately for policymakers and the public, while the basic science pointing to a rising human influence on climate is clear, many of the most important questions will remain surrounded by deep complexity and uncertainty for a long time to come: the pace at which seas will rise, the extent of warming from a certain buildup of greenhouse gases (climate sensitivity), the impact on hurricanes, the particular effects in particular places (what global warming means for Addis Ababa or Atlanta).

Under the treaty, the word «adaptation» is restricted to adaptation to adverse effects of warming from human - generated greenhouse gases (and to economic harm in, for example, places like Saudi Arabia that pump oil; they'll be standing in line for some of the cash).

Research by an international team of scientists recently published in the journal Geophysical Research Letters says that the cooling effect of aerosols is so large that it has masked as much as half of the warming effect from greenhouse gases.

While pressing for cuts in greenhouse - gas emissions and better efforts to control hunting, both legal and illegal, the participating scientists concluded on an optimistic note, saying they were «optimistic that humans can mitigate the effects of global warming and other threats to polar bears, and ensure that they remain a part of the Arctic ecosystem in perpetuity.»

As detailed in section V of this notice, it is widely recognized that greenhouse gases (GHGs) have a climatic warming effect by trapping heat in the atmosphere that would otherwise escape to space.

Global climate models have successfully predicted the rise in temperature as greenhouse gases increased, the cooling of the stratosphere as the troposphere warmed, polar amplification due the ice - albedo effect and other effects, greater increase in nighttime than in daytime temperatures, and the magnitude and duration of the cooling from the eruption of Mount Pinatubo.

(I think that an anomalously warm ocean surface heated from below would lead to more evaporation, and the additional water vapor would give a positive greenhouse effect that would partially offset the effect of a drop in greenhouse gas concentrations.)

With regards the Arctic: As Gillett et al and Johanessen et al show — in models without the anthropogenic increase of greenhouse gasses the Arctic warming does not occur, add the GHG effect and the warming occurs in all ensembles.

As levels fell in the atmosphere, their cooling effect was soon outweighed by the warming effect of the steadily rising levels of greenhouse gases.»

It's clear, too, that many ecosystems are already feeling the effects of warming driven substantially by the buildup of greenhouse gases in the atmosphere, and more is coming.

Soot and haze in the air already reduce surface insolation up to 10 % in some places, an effect said to mitigate the warming effect of greenhouse gases.

Multi-signal detection and attribution analyses, which quantify the contributions of different natural and anthropogenic forcings to observed changes, show that greenhouse gas forcing alone during the past half century would likely have resulted in greater than the observed warming if there had not been an offsetting cooling effect from aerosol and other forcings.

Anthropogenic global warming (AGW), a recent warming of the Earth's lower atmosphere as evidenced by the global mean temperature anomaly trend [11], is BELIEVED to be the result of an «enhanced greenhouse effect» mainly due to human - produced increased concentrations of greenhouse gases in the atmosphere [12] and changes in the use of land [13].

For instance, the warming that began in the early 20th century (1925 - 1944) is consistent with natural variability of the climate system (including a generalized lack of significant volcanic activity, which has a cooling effect), solar forcing, and initial forcing from greenhouse gases.

In particular, the authors find fault with IPCC's conclusions relating to human activities being the primary cause of recent global warming, claiming, contrary to significant evidence that they tend to ignore, that the comparatively small influences of natural changes in solar radiation are dominating the influences of the much larger effects of changes in the atmospheric greenhouse gas concentrations on the global energy balancIn particular, the authors find fault with IPCC's conclusions relating to human activities being the primary cause of recent global warming, claiming, contrary to significant evidence that they tend to ignore, that the comparatively small influences of natural changes in solar radiation are dominating the influences of the much larger effects of changes in the atmospheric greenhouse gas concentrations on the global energy balancin solar radiation are dominating the influences of the much larger effects of changes in the atmospheric greenhouse gas concentrations on the global energy balancin the atmospheric greenhouse gas concentrations on the global energy balance.

Not only that, but they give it power over El Nino by pontificating that «Pinatubo climate forcing was stronger than the opposite warming effects of either the El Nino event or anthropogenic greenhouse gases in the period 1991 - 93.»

• Greenhouse gases contributed a global mean surface warming likely to be in the range of 0.5 °C to 1.3 °C over the period 1951 to 2010, with the contributions from other anthropogenic forcings, including the cooling effect of aerosols, likely to be in the range of − 0.6 °C to 0.1 °C.

You'll note an acceleration of those temperatures in the late 1970s as greenhouse gas emissions from energy production increased worldwide and clean air laws reduced emissions of pollutants that had a cooling effect on the climate, and thus were masking some of the global warming signal.

Between 1990 and 2015, the bulletin says, there was a 37 percent increase in radiative forcing — the warming effect on the climate — because of long - lived greenhouse gases such as carbon dioxide, methane and nitrous oxide from industrial, agricultural and domestic activities.

In the very long term, a warming limit of 1.5 C requires total greenhouse - gas concentrations — plus the effects of aerosols — to be below a level of 400ppm CO2eq.

The most statistics can tell us at present is that there does appear to be a genuine warming trend in figure A. Whether this trend is the effect of greenhouse gas emissions or of a natural fluctuation due to some as - yet - undiscovered mechanism can not be determined from an analysis of the global mean temperature alone.

The new report — the first of three comprehensive studies to come out this year — makes one of the strongest claims yet in support of the hypothesis that human activity, namely the relentless pumping of greenhouse gases into the atmosphere, is what's behind climate change — an effect climate scientists refer to as anthropogenic global warming.

John Carter August 8, 2014 at 12:58 am chooses to state his position on the greenhouse effect in the following 134 word sentence: «But given the [1] basics of the greenhouse effect, the fact that with just a very small percentage of greenhouse gas molecules in the air this effect keeps the earth about 55 - 60 degrees warmer than it would otherwise be, and the fact that through easily recognizable if [2] inadvertent growing patterns we have at this point probably at least [3] doubled the total collective amount in heat absorption and re-radiation capacity of long lived atmospheric greenhouse gases (nearly doubling total that of the [4] leading one, carbon dioxide, in the modern era), to [5] levels not collectively seen on earth in several million years — levels that well predated the present ice age and extensive earth surface ice conditions — it goes [6] against basic physics and basic geologic science to not be «predisposed» to the idea that this would ultimately impact climate.»

If the world warms by 2 or more degrees will feedback effects kick in — such as unstoppable melting of the Siberian permafrost, which could send more greenhouse gases into the atmosphere, making it virtually impossible to stabilize warming at 2 degrees, let alone 1.5.

On the other hand, despite the overwhelming evidence that global warming will transform the Earth's climate for centuries, with fearful consequences for human health and wellbeing (not to mention the survival of many species and ecosystems), the world can not agree to significant reductions in greenhouse gas emissions because of concerns about the effects on economic growth.

In the scorching summer of 1988, when global warming first hit headlines in a significant way, presidential candidate George H.W. Bush used a Michigan speech to pledge meaningful action curbing heat - trapping greenhouse gases, saying, «Those who think we are powerless to do anything about the greenhouse effect forget about the White House effect.&raquIn the scorching summer of 1988, when global warming first hit headlines in a significant way, presidential candidate George H.W. Bush used a Michigan speech to pledge meaningful action curbing heat - trapping greenhouse gases, saying, «Those who think we are powerless to do anything about the greenhouse effect forget about the White House effect.&raquin a significant way, presidential candidate George H.W. Bush used a Michigan speech to pledge meaningful action curbing heat - trapping greenhouse gases, saying, «Those who think we are powerless to do anything about the greenhouse effect forget about the White House effect.»

In the Arctic, the tipping points identified in the new report, published on Friday, include: growth in vegetation on tundra, which replaces reflective snow and ice with darker vegetation, thus absorbing more heat; higher releases of methane, a potent greenhouse gas, from the tundra as it warms; shifts in snow distribution that warm the ocean, resulting in altered climate patterns as far away as Asia, where the monsoon could be effected; and the collapse of some key Arctic fisheries, with knock - on effects on ocean ecosystems around the globe.&raquIn the Arctic, the tipping points identified in the new report, published on Friday, include: growth in vegetation on tundra, which replaces reflective snow and ice with darker vegetation, thus absorbing more heat; higher releases of methane, a potent greenhouse gas, from the tundra as it warms; shifts in snow distribution that warm the ocean, resulting in altered climate patterns as far away as Asia, where the monsoon could be effected; and the collapse of some key Arctic fisheries, with knock - on effects on ocean ecosystems around the globe.&raquin the new report, published on Friday, include: growth in vegetation on tundra, which replaces reflective snow and ice with darker vegetation, thus absorbing more heat; higher releases of methane, a potent greenhouse gas, from the tundra as it warms; shifts in snow distribution that warm the ocean, resulting in altered climate patterns as far away as Asia, where the monsoon could be effected; and the collapse of some key Arctic fisheries, with knock - on effects on ocean ecosystems around the globe.&raquin vegetation on tundra, which replaces reflective snow and ice with darker vegetation, thus absorbing more heat; higher releases of methane, a potent greenhouse gas, from the tundra as it warms; shifts in snow distribution that warm the ocean, resulting in altered climate patterns as far away as Asia, where the monsoon could be effected; and the collapse of some key Arctic fisheries, with knock - on effects on ocean ecosystems around the globe.&raquin snow distribution that warm the ocean, resulting in altered climate patterns as far away as Asia, where the monsoon could be effected; and the collapse of some key Arctic fisheries, with knock - on effects on ocean ecosystems around the globe.&raquin altered climate patterns as far away as Asia, where the monsoon could be effected; and the collapse of some key Arctic fisheries, with knock - on effects on ocean ecosystems around the globe.»

The history of climate change goes back much further: in the 19th century, physicists theorised about the role of greenhouse gases, chiefly carbon dioxide, in the atmosphere, and several suggested that the warming effect would increase alongside the levels of these gases in the atmosphere.

A task force of the Ministry calculated that thanks to these alternative solutions, 120 million tons of CO2 - equivalent (a figure for global warming potential measuring how much of a certain greenhouse gas contributes to the greenhouse effect) was eliminated in 2010.

Since 2004, researchers in NOAA's Global Monitoring Division have released the Annual Greenhouse Gas Index: a single value that compares the total warming effect of each year's concentrations of heat - trapping gases to 1990 levels.