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Ozone layer
The ozone layer is the part
of the Earth's atmosphere
which contains relatively
high concentrations of ozone
(O3). "Relatively high"
means a few parts per
million - much higher than
the concentrations in the
... > full story
Tropospheric ozone
Ozone (O3) is a key
constituent of the
troposphere. Photochemical
and chemical reactions
involving it drive many of
the chemical processes that
occur in the atmosphere by
day and by night. At
... > full story
Ozone depletion
Ozone depletion describes
the observed loss of ozone
in the stratosphere over the
past 50 years. It
encompasses both a steady
thinning of the ozone layer
at mid-latitudes and its
catastrophic springtime
... > full story
Refrigerant
A refrigerant is a compound
used in a heat cycle that
undergoes a phase change
from a gas to a liquid and
back. The two main uses of
refrigerants are
refrigerators/freezers and
air conditioners. Cf.
... > full story
Browse Reference Articles
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Nitrogen oxide
NOx is a generic term for the various nitrogen oxides produced during combustion. They are believed to aggravate asthmatic conditions, react with the oxygen in the air to produce ozone, which is also ... > more -
Atmospheric chemistry
Atmospheric chemistry is a branch of atmospheric science in which the chemistry of the Earth's atmosphere and that of other planets is studied. It is a multidisciplinary field of research and draws ... > more -
Haloalkane
The haloalkanes (also known as Halogenoalkanes) are a group of chemical compounds, consisting of alkanes, such as methane or ethane, with one or more halogens linked, such as chlorine or fluorine, ... > more -
Air pollution
Air pollution is a broad term applied to any chemical, physical (particulate matter), or biological agent that modifies the natural characteristics of the atmosphere. The atmosphere is a complex, ... > more -
James Lovelock
James Ephraim Lovelock (born July 26, 1919), FRS, is an independent scientist, author, researcher and environmentalist who lives in Cornwall, in the south west of Great Britain. He is most famous for ... > more -
Earth's atmosphere
Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly 78% nitrogen and 21% oxygen 0.97% argon and carbon dioxide 0.04% trace ... > more -
Greenhouse gas
Greenhouse gases are components of the atmosphere that contribute to the greenhouse effect. Some greenhouse gases occur naturally in the atmosphere, while others result from human activities such as ... > more
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