Sentences with phrase «of high levels of greenhouse gases»

A study led by Noah Diffenbaugh at Stanford used modeling and statistics to find that these sorts of persistent high - pressure ridges are more likely to sit off California's coast in the presence of high levels of greenhouse gases in the atmosphere.

Not exact matches

Greenhouse gases rose slightly each year between 2013 and 2015, when they reached 98.3 million tons, 11 percent higher than 1990 levels, said Bill Drumheller, who tracks the state's emissions at the Washington Department of Ecology.

From climate campaigners to high - level diplomats, those who are committed to fighting global warming say making a strong agreement in Paris next year that radically reduces levels of greenhouse gas emissions is critical.

They don't need as much space as livestock, emit lower levels of greenhouse gases, and have a sky - high feed conversion rate: a single kilogram of feed yields 12 times more edible cricket protein than beef protein.

It takes decades for even the most immediate result of higher greenhouse gas levels — a rise in surface temperatures — to become apparent.

Charlie's research told him that during El Niño weather cycles, the surface seawaters in the Great Barrier Reef lagoon, already heated to unusually high levels by greenhouse gas — induced warming, were being pulsed from a mass of ocean water known as the Western Pacific Warm Pool onto the reef's delicate living corals.

Speaking at the start of an Environment and Public Works Committee hearing where he is the second highest - ranking member, the Montana Democrat said he wanted to weaken the bill's 2020 target for greenhouse gas emissions — now 20 percent below 2005 levels.

At the height of the last interglacial, when greenhouse - gas levels were roughly similar to current values, the global sea level was 4 - 6 metres higher than it is today.

- On any given day, 20 percent of Americans account for nearly half of U.S. diet - related greenhouse gas emissions, and high levels of beef consumption are largely responsible, according to a new study from researchers at the University of Michigan and Tulane University.

The record high global temperatures in 2015 and 2016, which saw global temperatures reach 1degC above pre-industrial levels, were the result of the long - term temperature rise attributed to greenhouse gases in combination with a temporary boost from a major El Niño event.

In the midst of an unseasonably warm winter in the Pacific Northwest, a comparison of four publicly available climate projections has shown broad agreement that the region will become considerably warmer in the next century if greenhouse gas concentrations in the atmosphere rise to the highest levels projected in the the Intergovernmental Panel on Climate Change (IPCC) «business - as - usual» scenario.

For other frequencies, only a small proportion is currently absorbed, so higher levels of greenhouse gases do make a difference.

Future forecasts of climate models forced with greenhouse gas levels as high as modern ones tend to result in Pliocene - like climate (~ 3 million years ago) when sea levels were estimated to be 14 meters higher than they are today.

The paper's lead author describes his findings thus — «Recent observations suggest the expected rate of warming in response to rising greenhouse gas levels, or «Transient Climate Response,» is likely to lie within the range of current climate models, but not at the high end of this range.

If greenhouse gases were responsible for global temperature increases in recent decades, atmospheric physics require that higher levels of our atmosphere would show greater warming than lower levels.

Ice core records prove that current levels of carbon dioxide and methane, both important greenhouse gases, are higher than any previous level in the past 400,000 years.

At a time when greenhouse gas emissions from human activities are at historically high levels and glaciers are melting, Purple poses the question of human responsibility.

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.

This is inconsistent with the idea that higher levels of atmospheric greenhouse gases will result in increased Atlantic hurricane activity.»

California should be able to make the decision to limit emissions, because high levels of emissions, contributing to the already high levels of greenhouse gases in the atmosphere, have the potential to negatively affect California in the near future.

In fact, the emissions of all types from the modern, scrubbed, coal plants have an impact on Kansas that is barely detectable even in pessimistic estimates in comparison to those from a gas plant (since gas plants emit higher levels of Nitrous Oxide, another greenhouse gas.

If greenhouse gases were responsible for global temperature increases in recent decades, atmospheric physics require that higher levels of our atmosphere would show greater warming than lower levels.

We analyzed the effect of a medium - high greenhouse gas emissions scenario (Special Report on Emissions Scenarios A2 in IPCC 2000) and included updated projections of sea - level rise based on work by Rahmstorf (Science 315 (5810): 368, 2007).

However, by then, we will be at higher levels of emissions, there will be more panic, and the costs of abruptly reducing greenhouse gas emissions will be much higher.

Future forecasts of climate models forced with greenhouse gas levels as high as modern ones tend to result in Pliocene - like climate (~ 3 million years ago) when sea levels were estimated to be 14 meters higher than they are today.

On a personal level I have high confidence in the greenhouse gas forcing model, but that opinion is based on the accumulated efforts of other people in other areas, and has little to do with the present work.

(Santa Barbara, Calif.)-- New evidence from climate records of the past provides some of the strongest indications yet of a direct link between tropical warmth and higher greenhouse gas levels, say scientists at the University of California, Santa Barbara.

The best evidence of global warming is also the most obvious and comprehensive: temperature increase, and higher levels of greenhouse gases in the atmosphere.

With high - level talks over a new international climate agreement beginning in Lima, Peru, it's worth reviewing some basic points about climate change driven by the buildup of human - generated greenhouse gases.

These findings suggest that the Earth, which is experiencing record - high levels of heat - trapping greenhouse gases, will see faster climate changes throughout the rest of this century.

The evidence for this is a mountain of spectroscopic data about the behaviour of the greenhouse gases from laboratory observations, ground level observations, high altitude aircraft observations and more recently satellite observations.

The global average temperature is continuing to rise as a consequence of warming driven by ever higher greenhouse gas levels in the atmosphere, in response to the profligate global consumption of fossil fuels.

Data on greenhouse gas abundances going back beyond a million years, that is, beyond the reach of antarctic ice cores, are still rather uncertain, but analysis of geological samples suggests that the warm ice - free periods coincide with high atmospheric CO2 levels.

In our study we also showed that, while difference between high and low immigration scenarios is 70 Mt of greenhouse gas emissions in Australia's by 2020, the world's greenhouse gas emissions would increase by less than half of this amount since immigrants to Australia come from countries that have per capita emissions levels less than half of Australia's (around 42 %).

Whether we look at the steady increase in global temperature; the buildup of greenhouse gases in the atmosphere to the highest level in a half - million years; the march of warmest - ever years (9 of the10 hottest on record have occurred since 2000); the dramatic shrinking of mountain glaciers and Arctic sea ice; the accelerating rise in sea level; or the acidification of our oceans; the tale told by the evidence is consistent and it is compelling.

It highlights that the livestock industry needs to take steps to reduce the high level of its Greenhouse Gas (GHG) emissions as well as to adapt to climate change.

One reason for being confident about there being much more uncertaintly than the 97 % concensus suggests is that there is nothing like a concensus, let alone proof, of what caused (and causes) the extreme natural variations in climate throughout geological time.This variation is well documented and almost certainly has a variety of underlying causes which are likely to be very different from C02 or other MM emissions even if higher greenhouse gases levels have often been present.

In the case of the China, seven pilot CO2 cap - and - trade regimes at the local level are under development, while in the United States, California's ambitious AB - 32 cap - and - trade system continues to make progress, and in the northeast, the Regional Greenhouse Gas Initiative (RGGI) is witnessing higher allowance auction prices due to the more severe targets the RGGI states recently adopted.

But with the build - up to war economic output reflective aerosols would have been at a higher level — with greenhouse gases having gone stagnant for a good part of the previous decade and with methane having been hit even harder due to its short residence time.

Ice core records prove that current levels of carbon dioxide and methane, both important greenhouse gases, are higher than any previous level in the past 400,000 years.

Only in the past few decades have scientists begun the measurements necessary to establish a relationship between current carbon levels and temperatures, and the science conducted since then has consistently pointed in one direction: that rising greenhouse gas emissions, arising from our use of fossil fuels and our industries, lead to higher temperatures.

Raymond wrote, «Proponents of the global warming theory say that higher levels of greenhouse gases — especially carbon dioxide — are causing -LSB-...]

Radiation from the atmosphere's greenhouse gases is narrow - band, even at sea level but increasingly so at higher altitudes as the effect of pressure - broadening decreases.

The energy system reference cases used for future greenhouse gas (GHG) emission pathways in climate change research are a case in point: baseline emission scenarios commonly project levels of coal combustion many times higher than current reserve estimates by the year 2100.

In the past, levels of greenhouse gases were higher and lower than they are today.

They point to this uncertainty, while ignoring the very high degree of confidence scientists have that carbon dioxide is a greenhouse gas, currently warming the planet, causing sea level rise and ocean acidification.

Climate models are not designed to capture record daily highs and lows with precision, and it remains impossible to know future human actions that will determine the level of future greenhouse gas emissions.

Now, as an important aside, it is quite doubtful one could actually stabilize at 750 ppm, since work by the National Center for Atmospheric Research and the Hadley Center suggest that carbon cycle feedbacks, like the defrosting of the tundra or the die - back of the Amazon rain forest, would release greenhouse gas emissions that would take the planet to much higher levels.

The coal, gas and oil companies that are major producers of greenhouse gases are finally taking notice of these high - level political discussions, and many have mounted spirited public relations exercises to defend themselves, and even win endorsements of their products.

Mr. Solanki said that the brighter sun and higher levels of so - called «greenhouse gases» both contributed to the change in the Earth's temperature, but it was impossible to say which had the greater impact.