Example collocations logo

Ozone in sentence

110 examples of Ozone in a sentence

Scientists now estimate that somewhere close to 50% of climate change is being caused by gases and pollutants other than CO2, including nitrogen compounds, low-level ozone formed by pollution, and black carbon.
While CO2 can remain in the atmosphere for centuries, other pollutants, including black carbon and ozone, remain for relatively periods – days, weeks, months, or years – so that reducing or ending emissions promises almost immediate climate benefits.
With economic growth and rising energy demand set to fuel a steady rise in emissions of air pollutants and rapidly rising concentrations of particulate matter (PM) and ozone in the coming decades, this approach is untenable.
In a 2009 study, scientists concluded that, by crossing any of nine “planetary boundaries” – climate change, biodiversity loss, disruption of nitrogen and phosphorus cycles, land use, freshwater extraction, ocean acidification, ozone depletion, atmospheric aerosol loading, and chemical pollution – humans would increase the risk of fundamentally changing the Earth system.
The Climate’s Low-Hanging FruitNEW YORK – Next month, signatories to the 1989 Montreal Protocol on Substances that Deplete the Ozone Layer will convene in Kigali, Rwanda, to consider an amendment to the treaty that would gradually reduce, and eventually eliminate, the use of hydrofluorocarbons.
The Montreal Protocol was established to repair the ozone layer, which protects all life on the planet from deadly levels of ultraviolet rays.
The ozone layer is healing and, according to the latest estimates, it could recover by 2065, saving trillions of dollars in global health-care and agriculture costs.
The ozone layer is showing signs of recovery.
Many toxic substances are released into the environment, even some that are not toxic but nonetheless are highly damaging – for example, the chlorofluorocarbons that caused the Antarctic ozone hole (and which are now regulated).
If it had turned out that chlorine behaved chemically like bromine, the ozone hole would by then have been a global, year-round phenomenon, not just an event of the Antarctic spring.
Thus, Soviet-built tanks and artillery use PCB's in their hydraulic systems, airplanes in combat mission add ozone destroying halons to their fuel, and marine units use organic-tin compounds in the paint used on their hulls;Effects of the weapons themselves.
Indeed, this year’s Fukushima nuclear disaster in Japan and last year’s BP oil spill in the Gulf of Mexico have taken their place alongside older problems, such as ozone depletion.
One example is the belated recognition that seemingly inert and benign halogenated hydrocarbons were interfering with the ozone layer.
The Ozone MafiaNow that the Kyoto Protocol has been ratified, with even Russia belatedly signing on, a threat is emerging against an earlier landmark in international environmental protection – the Vienna Convention and the Montreal Protocol for defending the stratospheric ozone layer.
To protect the stratospheric ozone layer, international agreements have been reached to ban the use and trade of the ozone-destroying chemicals called chlorofluorocarbons (CFC’s).
The content of chlorine (from decay of CFC’s) in the stratosphere has leveled off, and two years ago the ozone hole over the Antarctic was the smallest in decades (and broken up into two).
However, new reports show a thinning of the ozone layer over the Arctic, and last year’s Antarctic ozone hole was as large and deep as ever.
Some features in the conventions for protecting the ozone layer constitute holes of a legal kind.
So, do such practices constitute a real threat to the conventions for protecting the stratospheric ozone, or are they “only” a factor that will delay the final phase-out of CFC’s within years or a decade?
The Hartwell group proposes that we adopt three basic climate-related goals: ensuring secure, affordable energy supplies for everyone (which means developing alternatives to fossil fuels); ensuring that economic development doesn’t wreak environmental havoc (which means not just reducing CO2 emissions, but also cutting indoor pollution from burning biomass, reducing ozone, and protecting tropical forests); and making sure that we are prepared to cope with whatever climate changes may occur, man-made or natural (which means recognizing, at last, the importance of adapting to climate change).
After all, technological innovation, along with an international effort to adopt the 1987 Montreal Protocol, is how the world put a stop to the erosion of the ozone layer.
These include black carbon or soot (the primary component of particulate matter that is also a major and growing health concern); hydrofluorocarbons (HFCs), used most commonly in refrigeration; and methane and tropospheric (or ground-level) ozone.
Black carbon and tropospheric ozone pollution are traditional air pollutants, which together kill nearly seven million people a year and destroy hundreds of millions of tons of food crops.
Already, measures to mitigate HFC production and consumption are being pursued through the Montreal Protocol on protecting the ozone layer.
This builds on an impressive phase-out of older chemicals, such as chlorofluorocarbons and others, that has averted the equivalent of 135 billion tons of CO2 from entering the atmosphere, while accelerating the recovery of the ozone layer.
Ground-level ozone pollution kills more than 150,000 people per year, while global warming causes another 141,000 deaths.
The world can increasingly focus aid on the main environmental problems – indoor and outdoor air pollution, along with lead and ozone pollution – that cause almost all environment-related deaths.
Halogenated fire retardants are added to the fuel tanks of combat airplanes, causing massive damage to the stratospheric ozone layer.
Following international agreements such as the Montreal Protocol on the Protection of the Ozone Layer, global emissions of ozone-depleting substances have otherwise been substantially reduced.
One model is the Montreal Protocol on Substances that Deplete the Ozone Layer, which has succeeded spectacularly in reducing levels of chlorofluorocarbons, highlighting the continued potential of inclusive multilateralism.
Back