Sentences with phrase «change in ozone»

See the first paper listed here: http://ljp.gcess.cn/dct/page/65558 that links change in the ozone content of the Arctic stratosphere to the ENSO phenomenon.

Note that the inversion at the tropopause is entirely a result of ozone reacting with incoming solar radiation and particles so any change in the ozone creation / destruction balance is going to affect the air circulation below the tropopause.

There is no doubt that it is upper troposphere cloud that responds to change in local temperature in turn related to periodic change in ozone concentration that is in turn associated with vortex activity at the poles.

As for the Northern Hemisphere, Nagashima notes that the decline of total ozone calculated there is statistically significant, but that more calculations are needed in order to understand what the change in ozone really is — and what it means.

My main problem with that study is that the weather models don't use any forcings at all — no changes in ozone, CO2, volcanos, aerosols, solar etc. — and so while some of the effects of the forcings might be captured (since the weather models assimilate satellite data etc.), there is no reason to think that they get all of the signal — particularly for near surface effects (tropospheric ozone for instance).

This outcome is important to researchers as well as policymakers and regulators, who use exposure metrics to assess how changes in ozone levels affect human health, vegetation, and climate.

A: Many dogs are fearful of the sound of thunder — and possibly the accompanying lightning flashes, loud wind, and changes in ozone levels and barometric pressure.

Changes in ozone layer concern mainly the stratosphere and I used to think there are very few molecules (even atoms, in fact) upward.

The history of the Montreal Protocol is one of a dynamic treaty that responds quickly to changes in ozone and climate science, technology, and the needs of Parties and industries dependent on ODS and their substitutes - HFCs.

``... This new research is interesting and provides a novel perspective on changes in the ozone layer.

Changes in ozone depletion may also affect climate change, and many of the chemicals involved in ozone depletion and their substitutes also can influence climate.

Studies of potential climate change effects (e.g., changes in temperature, circulation, or the abundance of other chemicals) allow for much less ambiguity in accurately attributing any observed changes in the ozone layer to their appropriate cause.

The most important attribute of changes in the Ozone column are the second order effects such as CH4 reduction.

As the Antarctic sea ice reached record levels, scientists floated several hypotheses, including possible changes in the ozone hole over Antarctica, or increased amounts of fresh water — which freezes more easily — on the surface of the ocean around Antarctica.

Possible correlations between solar ultraviolet variability and climate change have previously been explained in terms of changes in ozone heating influencing stratospheric weather.

The latter show that human - induced changes in ozone and well - mixed greenhouse gases account for ~ 80 % of the simulated rise in tropopause height over 1979 — 1999.

Changes in stratospheric temperatures, induced by changes in ozone or LLGHG concentration, alter the Brewer - Dobson circulation (Butchart and Scaife, 2001; Butchart et al., 2006), controlling the rate at which long - lived molecules, such as LLGHGs, CFCs, HCFCs and halogens are transported from the troposphere to various levels in the stratosphere.

Actually, the «hurricanes in space» (turbulence in the solar wind) is what changes Earth's climate via changes in the arctic and antarctic oscillation leading to changes in ozone over the mid latitudes.

Not exact matches

This «would create a persistent layer of black carbon particles in the northern stratosphere that could cause potentially significant changes in the global atmospheric circulation and distributions of ozone and temperature,» they concluded.

«The rapid global decline in ozone - depleting substances shows that we can make positive change when we act decisively.

Climate change, smog, acid rain, dead zones and the ozone hole are real issues affecting the planet, and nitrogen pollution plays a key role in each of them.

As Matthew Hoffmann has argued [2], the ozone negotiations marked a normative shift over the desirability of universal participation in global environmental negotiations, a shift that was locked into the initial negotiations on climate change.

If there were any losers affected by Koo's change it was the Queens Republican organization with Koo's election in 2009, along with Councilmember Dan Halloran of Whitestone, it was Republican Chairman Phil Ragusa, who could then boast of his organization's new found power as it brought the council ranks from Queens to three as Eric Ulrich had been previously elected to the Ozone Park seat.

State Sen. Joseph Addabbo (D - Howard Beach) and City Councilman Eric Ulrich (R - Ozone Park) sparred over their records and qualifications for Senate at a spirited debate last Thursday at Our Lady of Hope School in Middle Village, with Addabbo portraying himself as a leader who stands up for workers and families during tough fiscal times and Ulrich arguing the effort has not been enough to change New York's economy.

The committee, along with Queens Councilman Ruben Wills, advised developer George Tserpes of Tserpes Holding LLC to withdraw his application seeking a zoning change to build a $ 60 million, 13 - story hotel in a residential area in Queens» South Ozone Park, because it would likely not be approved.

«While ozone depletion from dichloromethane is currently quite modest, it is uncertain how the amount of this gas in the atmosphere will change in the future.

«We are quickly running out of time to prevent hugely dangerous, expensive, and perhaps unmanageable climate change,» wrote the report's authors, who include former U.N. Environment Programme chief Achim Steiner and Mexican chemist Mario Molina, who won the Nobel Prize for his role in discovering the threat that chlorofluorocarbon gases pose to the Earth's ozone layer.

If Lu's suggestion is correct, ozone levels should fall then rise every 11 years, in step with changes in cosmic - ray intensity driven by the 11 - year solar cycle.

«A week ago, the ozone concentration in the stratosphere was still at a normal level; I don't know if it has changed yet.

«The study was the first to specifically isolate CO2's effect from that of other global - warming agents and to find quantitatively that chemical and meteorological changes due to CO2 itself increase mortality due to increased ozone, particles and carcinogens in the air.»

They identified 10 environmental limits we might not want to transgress in the Anthropocene: aerosol pollution; biodiversity loss; chemical pollution; climate change; freshwater use; changes in land use (forests to fields, for example); nitrogen and phosphorus cycles; ocean acidity; and the ozone hole.

The annual Antarctic ozone hole has caused significant changes in Southern Hemisphere surface climate in the summer.

Earth System Threshold Measure Boundary Current Level Preindustrial Climate Change CO2 Concentration 350 ppm 387 ppm 280 ppm Biodiversity Loss Extinction Rate 10 pm > 100 pm * 0.1 - one pm Nitrogen Cycle N2 Tonnage 35 mmt ** 121 mmt 0 Phosphorous Cycle Level in Ocean 11 mmt 8.5 - 9.5 mmt — 1 mmt Ozone Layer O3 Concentration 276 DU # 283 DU 290 DU Ocean Acidification Aragonite ^ ^ Levels 2.75 2.90 3.44 Freshwater Usage Consumption 4,000 km3 ^ 2,600 km3 415 km3 Land Use Change Cropland Conversion 15 km3 11.7 km3 Low Aerosols Soot Concentration TBD TBD TBD Chemical Pollution TBD TBD TBD TBD * pm = per million ** mmt = millions of metric tons #DU = dobson unit ^ km3 = cubic kilometers ^ ^ Aragonite is a form of calcium carbonate.

To what extent climate change due to the emission of greenhouse gases may favor the formation of an «ozone hole» in the Arctic stratosphere is an important topic of the POLSTRACC campaign.

Robert Watson, an atmospheric chemist at the University of East Anglia in the United Kindgdom, is being honored for his studies of the ozone hole and work toward an international agreement to ban the use of the chemicals causing ozone depletion; he later chaired the Intergovernmental Panel on Climate Change.

Similar scandals erupted over the effects of scores of industrial applications, ranging from sulfur dioxide and acid rain, to certain aerosols and the hole in the ozone layer, to leaded gas and cognitive impairment, to the granddaddy of them all, fossil fuels and global climate change.

In addition to its direct contribution to global warming, ozone may worsen climate change by preventing plant growth that would otherwise capture carbon dioxide

Thompson and Solomon compared the timing of the changing patterns in the two layers of the atmosphere and found a strong correlation, suggesting that Antarctic ozone depletion has played an important role in driving the continent's climatic variability.

These gases, culprits in no less than two environmental crimes — the ozone hole and climate change — are required to efficiently cool your food and beverages.

Gary Cohen, president and founder of the Massachusetts - based nonprofit Health Care Without Harm, said in a telephone interview that the risks of climate change to both the health of U.S. citizens and the U.S. health care delivery system is profound, particularly in urban areas, where warming average temperatures are exacerbated by the heat island effect and high concentrations of other air pollution like ozone and particulate matter.

Ozone treatment caused no changes in the PLGA and no loss of function, with cells still able to grow on the polymer scaffold, as they would in treatments.

In the field of planetary and atmospheric sensing, linear arrays capable of simultaneously measuring height - resolved spectral features would have a major impact on issues such as climate change and ozone chemistry,» explains Peter de Maagt, ESA's project manager for Star Tiger.

Meanwhile, most Americans in fact are ignorant of the facts of climate science and even «confuse climate change with the ozone hole,» Schmidt remarked.

Changes in the ratio of ozone to OH radicals could be an additional anthropogenic influence on the atmosphere.

This is because warmer temperatures and other changes in the atmosphere related to a changing climate, including higher atmospheric levels of methane, spur chemical reactions that lead to ozone.

«EPA acknowledges the newer studies on ozone «do not materially change any of the broad scientific conclusions regarding the health effects of exposure,»» the group said in a statement.

Post, E. S., A. Grambsch, C. Weaver, P. Morefield, J. Huang, L. - Y. Leung, C. G. Nolte, P. Adams, X. - Z. Liang, J. - H. Zhu, and H. Mahone, 2012: Variation in estimated ozone - related health impacts of climate change due to modeling choices and assumptions.

Climate change is projected to harm human health by increasing ground - level ozone and / or particulate matter air pollution in some locations.

It contributes to the water vapor continum in the window and this is similar to the ozone, producing a flux change that can be seen from above as from the surface.

The temperature change in any particular region will in fact be a combination of radiation - related changes (through greenhouse gases, aerosols, ozone and the like) and dynamical effects.