Sentences with phrase «increasing atmospheric gases»

Today Earth is out of balance because increasing atmospheric gases such as CO2 reduce Earth's heat radiation to space, thus causing an energy imbalance, as there is less energy going out than coming in.

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.

I want to discuss a contemporary moral epidemic: the notion that increasing atmospheric concentrations of greenhouse gases, notably carbon dioxide, will have disastrous consequences for mankind and for the planet.

In the clouds in her model, atmospheric gas would sometimes condense onto the shimmering dust particles, increasing in size to a few millimeters big.

In particular, the connection between rising concentrations of atmospheric greenhouse gases and the increased warming of the global climate system is more certain than ever.

The study shows, with 90 percent confidence, that such extreme summers in Australia are five times more likely due to an increase in greenhouse gases, said paper co-author David Karoly, an atmospheric scientist at the University of Melbourne and the Australian Research Council Center of Excellence for Climate System Science.

As atmospheric carbon dioxide increases, the greenhouse gas is absorbed into ocean water, making it more acidic.

The ice core data also shows that CO2 and methane levels have been remarkably stable in Antarctica — varying between 300 ppm and 180 ppm — over that entire period and that shifts in levels of these gases took at least 800 years, compared to the roughly 100 years in which humans have increased atmospheric CO2 levels to their present high.

When the researchers placed the material inside a gas chamber and cranked up the air pressure from one bar (about the atmospheric pressure at sea level) to five bars, the cube's volume increased by about 3 percent.

Tropospheric ozone — a greenhouse gas and the kind that affects the air we breathe — can increase in concentration because of atmospheric conditions, or can result from human activities.

Coal plants are one of the largest contributors to atmospheric particulate matter and ozone — which are linked to worsened asthma and increased rates of heart attacks and premature death — as well as greenhouse gases and toxic substances, including mercury.

During the next century, winds are expected to intensify and migrate closer to the East Antarctic coast as a result of increased atmospheric greenhouse gas.

However, as the atmospheric CO2 rises — due to the almost exponential increase in emissions from industrial sources — the influence of solar variability on the Earth's climate will most likely decrease, and its relative contribution will be far surpassed by «greenhouse» gases.

«The prevailing thinking has been that as the oceans warm due to increasing atmospheric greenhouse gases, the oxygen content of the oceans should decline,» Thunell says.

A new analysis using changes in cloud cover over the tropical Indo - Pacific Ocean showed that a weakening of a major atmospheric circulation system over the last century is due, in part, to increased greenhouse gas emissions.

The reason may well be climate change caused by increasing concentrations of atmospheric greenhouse gases — now roughly 390 parts per million, up from 280 ppm in the 1700s.

The study calculated the likely effect of increasing atmospheric levels of greenhouse gases above pre-industrialisation amounts.

«The atmospheric and oceanic CO2 increase is being driven by the burning of fossil fuels,» says Pieter Tans, a senior scientist at the National Oceanic and Atmospheric Administration's Earth System Research Laboratory, who leads the U.S. government effort to monitor global greenhouse gas levels.

By analyzing global water vapor and temperature satellite data for the lower atmosphere, Texas A&M University atmospheric scientist Andrew Dessler and his colleagues found that warming driven by carbon dioxide and other gases allowed the air to hold more moisture, increasing the amount of water vapor in the atmosphere.

«(A) describe increased risks to natural systems and society that would result from an increase in global average temperature 3.6 degrees Fahrenheit (2 degrees Celsius) above the pre-industrial average or an increase in atmospheric greenhouse gas concentrations above 450 parts per million carbon dioxide equivalent; and

Meanwhile, here on earth, we still have the same remaining problem of our trapped thermal atmospheric content that can not escape away from Earth's self contained system that is maintained by the greenhouse gases that surrounds the earth that is said to be increasing in content, and because it increasing in content, the thermal kinetic capacity (global warming potential of certain said gases will rise with it.)

Amplification of streamflow impacts of El Nino by increased atmospheric greenhouse gases EP Maurer, S Gibbard, PB Duffy — GEOPHYSICAL RESEARCH LETTERS, 2006

One clue that might help unravel past changes in methane sources is that the rate of atmospheric increase of several gases all correlate.

All the models I've seen rely on the assumption that an increase in atmospheric greenhouse gases will necessarily increase the long - term average temperature of the globe and that all the other mechanisms that cause or counteract warming are understood and modeled fairly accurately.

But the burning of oil, coal, and gas also caused most of the historical increase in atmospheric levels of heat - trapping greenhouse gases.

Our general circulation model simulations, which take into account the recently observed widespread occurrence of vertically extended atmospheric brown clouds over the Indian Ocean and Asia3, suggest that atmospheric brown clouds contribute as much as the recent increase in anthropogenic greenhouse gases to regional lower atmospheric warming trends.

These rising atmospheric greenhouse gas concentrations have led to an increase in global average temperatures of ~ 0.2 °C decade — 1, much of which has been absorbed by the oceans, whilst the oceanic uptake of atmospheric CO2 has led to major changes in surface ocean pH (Levitus et al., 2000, 2005; Feely et al., 2008; Hoegh - Guldberg and Bruno, 2010; Mora et al., 2013; Roemmich et al., 2015).

At the same time, the burning of ever - increasing quantities of coal, oil and natural gas converts some atmospheric nitrogen into oxides of nitrogen (NOx).

The evidence here is more circumstantial, but Danish researcher Lars - Georg Hersoug notes that atmospheric levels of the gas have risen during the same period and that in the United States, obesity has increased most rapidly on the East Coast, where CO2 concentrations are highest.

... The Earth's atmospheric methane concentration has increased by about 150 % since 1750, and it accounts for 20 % of the total radiative forcing from all of the long - lived and globally mixed greenhouse gases (these gases don't include water vapor which is by far the largest component of the greenhouse effect).

A 2008 study led by James Hansen found that climate sensitivity to «fast feedback processes» is 3 °C, but when accounting for longer - term feedbacks (such as ice sheet disintegration, vegetation migration, and greenhouse gas release from soils, tundra or ocean), if atmospheric CO2 remains at the doubled level, the sensitivity increases to 6 °C based on paleoclimatic (historical climate) data.

This corresponded with strong increases in atmospheric greenhouse gases, especially Arctic methane (Petrenko 2009, Nisbet 2009).

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.

Ongoing measurements of anthropogenic CO2, other gases and hydrographic parameters in these key marginal seas will provide information on changes in global oceanic CO2 uptake associated with the predicted increasing atmospheric CO2 and future global climate change.

If we continue increasing atmospheric CO2 concentrations with emissions from the burning of coal, oil, and gas, the Earth will continue to get hotter.

Last year's scorching summer and record heat wave in Australia were attributed in part to an increase in atmospheric greenhouse gases from to human activities.

The temperature in Antarctica (red line) is expected to continue to rise with this increase in atmospheric greenhouse gases.

In contrast, chemistry modeling and paleoclimate records [222] show that trace gases increase with global warming, making it unlikely that overall atmospheric CH4 will decrease even if a decrease is achieved in anthropogenic CH4 sources.

Reduction of the amount of atmospheric CH4 and related gases is needed to counterbalance expected forcing from increasing N2O and decreasing sulfate aerosols.

The rapid rate of climate change since the Industrial Revolution has resulted from changes in atmospheric chemistry, specifically increases in greenhouse gases due to increased combustion of fossil fuels, land - use change (e.g., deforestation), and fertilizer production (Forster et al. 2007).

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

The higher concentration of atmospheric greenhouse gases during the PETM therefore seems like a better explanation for mammalian dwarfing than the increase in temperature itself.

While 2015 may prove to be a fluke, computer models predict similar conditions will become more common as atmospheric levels of man - made greenhouse gases increase.

Res — math.ku.dk ``... Evidence is mounting that changes in global surface temperature can be attributed to human activities that increase the atmospheric concentration of greenhouse gases and tropospheric sulfates [Sanier et al, 1996a, 1996b].

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

All the models I've seen rely on the assumption that an increase in atmospheric greenhouse gases will necessarily increase the long - term average temperature of the globe and that all the other mechanisms that cause or counteract warming are understood and modeled fairly accurately.

Climate models suggest that human activities, specifically the emission of atmospheric greenhouse gases, may lead to increases in the frequency of severe storms in certain regions of the Northern Hemisphere.

Growing populations and growing energy demand will greatly increase atmospheric concentrations of greenhouse gases in this century without big changes in technology, policy, or behavior.

Geoengineering proposals fall into at least three broad categories: 1) managing atmospheric greenhouse gases (e.g., ocean fertilization and atmospheric carbon capture and sequestration), 2) cooling the Earth by reflecting sunlight (e.g., putting reflective particles into the atmosphere, putting mirrors in space to reflect the sun's energy, increasing surface reflectivity and altering the amount or characteristics of clouds), and 3) moderating specific impacts of global warming (e.g., efforts to limit sea level rise by increasing land storage of water, protecting ice sheets or artificially enhancing mountain glaciers).

One clue that might help unravel past changes in methane sources is that the rate of atmospheric increase of several gases all correlate.