Sentences with phrase «of ozone changes»

As a consequence of the ozone changes, radiative forcing of surface climate is out of phase with solar activity.

Shindell, D.T., and G. Faluvegi, 2002: An exploration of ozone changes and their radiative forcing prior to the chlorofluorocarbon era.

Three different ozone databases provide regression fits to the ozone observations, and are available for use in model studies of the influence of ozone changes on stratospheric and tropospheric temperatures.

The authors used «fingerprints» of the ozone changes with season and altitude to attribute the ozone's recovery to the continuing decline of atmospheric chlorine originating from chlorofluorocarbons (CFCs).

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.

Photocopiers are a source of potentially deadly ozone if the filter isn't periodically changed, and it's possible that even very small amounts can cause chest pain and irritation.

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.

There is also growing understanding of the links between atmospheric problems such as local air pollution, acid rain, global climate change and stratospheric ozone depletion.

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.

[2] Matthew Hoffmann, 2005, Ozone Depletion and Climate Change, Albany: State University of New York Press.

As the Montreal Protocol marks its 25th anniversary — the UN Day for the Preservation of the Ozone Layer — its legacy lives on, tugging and pulling at the sleeves of international efforts to address 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.

On the broader implications of the findings and outlook, Dr Hossaini said: «Ozone is an important climate gas and changes to its abundance, including due to the increasing influence of dichloromethane, could be relevant for refining future climate predictions.

«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.

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.

«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.»

An extensive body of prior research has revealed students have many misconceptions about climate change, confusing it, for example, with causing acid rain and ozone depletion, as well as linking it to skin cancer, the authors note.

Beyond basic subjects such as climate and weather, this site from the U.K. Department of Environment, Food & Rural Affairs covers a wide range of pressing atmospheric science issues including acid rain, air quality, climate change, global warming and ozone depletion.

The recent declines and disappearances of many frogs, toads, and salamanders have been blamed on a number of causes, including pathogenic infection, pesticides, pollutants, increased UV radiation from ozone depletion, and local drought spurred by climate change.

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.

The Ozone Satellite, 1991 - 2011: It proved the damage caused by CFCs, helped predict climate changes, and saw the beginning of the recovery of the ozone lOzone Satellite, 1991 - 2011: It proved the damage caused by CFCs, helped predict climate changes, and saw the beginning of the recovery of the ozone lozone layer.

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.

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.

It proved the damage caused by CFCs, helped predict climate changes, and saw the beginning of the recovery of the ozone layer.

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

It remains unclear what specifically is driving the move, though climate change is a likely suspect, along with depletion of the ozone layer.

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

For example, at 60 parts per billion ozone levels, which the U.S. Environmental Protection Agency considers a «moderate» level, the researchers found that enough chemical changes took place to thoroughly confuse bees and hinder their ability to identify the plumes of floral scents they needed to locate food.

To examine the impacts of climate change on ozone pollution, Pfister and her colleagues looked at two scenarios.

Temperature observations are sparse around the hostile continent, but scientists recently modeled the ocean current knock - on effects of these wind changes, which have been caused by ozone thinning and by the buildup of greenhouse gases.

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.

Man - made climate change has been a global concern for several years, but as industrial emissions of some greenhouse and ozone - depleting gases drop, scientists are finding new sources to worry about.

«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.

The study on pollution showed that ozone, which tends to form on hotter days, changes the risk profile of heat stress.

It can also react with other compounds to form ozone or nitric acid vapor, both of which can harm breathing and have climate change impacts.

For example, Chemistry - Climate models allow the possible effects of climate change on the recovery of the ozone hole to be studied.

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.

Sheffield, P. E., J. L. Carr, P. L. Kinney, and K. Knowlton, 2011: Modeling of regional climate change effects on ground - level ozone and childhood asthma.

EPA, 2009: Assessment of the Impacts of Global Change on Regional U.S. Air Quality: A Synthesis of Climate Change Impacts on Ground - Level Ozone.

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.

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).

Stratospheric cooling as a result of excess CO2 does influence ozone recovery, and ozone changes in the troposphere and stratosphere to have effects on radiative balance of the planet.