Ozone

Ozone

Ozone is made up of three oxygen atoms. It has benefits and dangers depending on where in our atmosphere it occurs: near ground level, it is a pollutant that affects respiration; 10-50km up, in the stratosphere, the ozone layer philtres out potentially harmful ultraviolet rays (which cause skin cancer) from reaching the earth. Ozone also functions as a greenhouse gas, though it is considered a less potent one than CO2.

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Part of Speech: noun
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Industry/Domain: Natural environment
Category: Climate change
Company: BBC
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ozone

Pollution control; Air pollution

A strong smelling, pale blue, reactive toxic chemical gas consisting of three oxygen atoms. It is a product of the photochemical process involving the sun's energy and ozone ...

ozone

Weather; Meteorology

A nearly colorless gas, formula O 3 , molecular weight 48, that appears blue in the condensed phase or at high concentration, with a characteristic odor like that of weak ...

ozone

Personal care products; Perfume

A modern, synthetic note meant to mimic the smell of fresh air. It is frequently described as the smell of air right after a thunderstorm.

ozone

Biology; General

A triatomic (O3) form of oxygen that is formed in the stratosphere when sunlight strikes oxygen atoms. This atmospheric ozone helps filter radiation from the sun.

ozone

Natural environment; Coral reefs

A gaseous molecule that contains three oxygen atoms (O3), instead of the usual two (O2). Ozone can exist either high in the atmosphere (stratosphere), where it shields the Earth ...

Annex I countries

Natural environment; Climate change

The industrialised countries (and countries in transition to a market economy) which took on obligations to reduce their greenhouse gas emissions under the Kyoto Protocol. Their ...

Annex II

Natural environment; Climate change

Countries which have a special obligation under the Kyoto Protocol to provide financial resources and transfer technology to developing countries. This group is a sub-section of ...

Aosis

Natural environment; Climate change

The Alliance of Small Island States comprises 42 island and coastal states mostly in the Pacific and Caribbean. Members of Aosis are some of the countries likely to be hit hardest ...

The Fourth Assessment Report (AR4)

Natural environment; Climate change

The Fourth Assessment Report produced by the Intergovernmental Panel on Climate Change (IPCC) published in 2007. The report assessed and summarised the climate change situation ...

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Natural environment; Climate change

A plan drawn up at the UN Climate Change Conference in Bali, in December 2007, forming part of the Bali roadmap. The action plan established a working group to define a long-term ...

Bali roadmap

Natural environment; Climate change

A plan drawn up at the UN Climate Change Conference in Bali, in December 2007, to pave the way for an agreement at Copenhagen in 2009 on further efforts to reduce greenhouse gas ...

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