Scientists can compare the amount of carbon dioxide in the atmosphere today with the amount of carbon dioxide trapped in ancient ice cores, which show that the atmosphere had less carbon dioxide in the past.
Atmosphere. The mixture of gases surrounding the Earth. The Earth's atmosphere consists of about 78.1% nitrogen (by volume), 20.9% oxygen, 0.93% argon, 0.038% carbon dioxide and trace amounts of other gases.
Atmosphere: The envelope of air surrounding the Earth. Most of the total mass of the atmosphere lies within the troposphere and the stratosphere. Most weather events are confined to the troposphere, the lower eight to 12 km of the atmosphere.
atmosphere: The atmosphere is the pocket of gases surrounding Earth and held in place by gravity.
benthic zone: The benthic zone is the very bottom layer of the ocean.
Atmosphere
The layer of gases that surround and protects the Earth. It is about 700km thick.
Carbon Monoxide
A highly poisonous gas produced when fuel is burnt. It is mainly emitted from car exhausts.
Atmosphere
Around the earth there is an envelope of gases held by gravity. The gases are mainly nitrogen and oxygen, together with elements of inert gases hydrogen, ozone, radon, and carbon dioxide.
atmosphere - the 500 km thick layer of air surrounding the earth which supports the existence of all flora and fauna.
Atmosphere: A standard unit of pressure exerted by a 29.92-inch column of mercury at sea level and equal to 1000 grams per square centimeter.
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BAQ: Building Air Quality ...
Atmosphere-Supplying Respirator: A respirator that supplies the user with breathing air from a source independent of the ambient atmosphere, and includes supplied-air respirators (SAR) and self-contained breathing apparatus (SCBA) units.
Atmosphere: The layer of gases surrounding the earth and composed of considerable amounts of nitrogen, hydrogen, and oxygen.
Atmospheric water: Water present in the atmosphere either as a solid (snow, hail), liquid (rain) or gas (fog, mist).
Atmosphere - The sum total of all the gases surrounding the Earth, extending several hundred kilometers above the surface in a mechanical mixture of various gases in fluid-like motion. The permanent constituents are molecular nitrogen; 78.
Atmosphere: The gaseous mass or envelope of air surrounding the Earth. From ground-level up, the atmosphere is further subdivided into the troposphere, stratosphere, mesosphere, and the thermosphere.
Atmosphere-Supplying Devices
Respiratory protection devices coupled to an air source. The two types are Self-Contained Breathing Apparatus (SCBA) and supplied air respirators (airline).
Attenuation ...
atmosphere The gaseous layer that surrounds the earth (air). One atmosphere of pressure equals 14.7 pounds per square inch, 33.9 feet of water or 29.92 inches of mercury.
atmospheric moisture
atmospheric pressure ...
15-atmosphere percentage (pourcentage à atmosphères) The percentage of water contained in a soil that has been saturated, subjected to, and is in equilibrium with, an applied pressure of 15 atm.
Mapped Atmosphere-Plant Soil (MAPPS) model: A global biological and geographical model that simulates the potential natural vegetation that can be supported at any site in the world under a long-term steady-state climate.
ATMOSPHERE The "atmosphere`" is defined as the envelope of gases that extends upwards to a distance of about 1000 kilometres from the earth's surface. The earth's gravitational field prevents these gases from escaping.
Atmosphere->
Thin layer of gas or air that surrounds the Earth. Processes in the atmosphere include winds, weather, and the exchange of gases with living organisms.
Hydrosphere-> ...
atmosphere is transferred to the water. This is sometimes
called surface reaeration.
reagent (re-A-gent). A pure chemical substance that is used ...
The atmosphere is a complex, dynamic and fragile system. Concern is growing about the global effects of air pollutant emissions, especially global warming.
the layer of atmosphere closest to the Earth, extending seven to ten miles above the surface, containing most of the clouds and moisture.
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Warming of the atmosphere due to the reduction in outgoing solar radiation resulting from concentrations of gases such as carbon dioxide.
Definition source
Translations of "greenhouse effect": ...
Water from the atmosphere that falls to the ground as a liquid (rain) or a solid (snow, sleet, hail).
Primary Treatment
Removing solids and floating matter from wastewater using screening, skimming and sedimentation (settling by gravity).
The layer of the atmosphere closest to the earth's surface.
Source: Terms of the Environment
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EA - Energy and Atmosphere section of the LEED rating system.
Eco-Friendly, Environmentally- Friendly - a loose term often used in marketing to inform consumers about an attribute of a product or service that has an environmental benefit.
The portion of the atmosphere 10-to-25 miles above the earth's surface. This upper atmosphere of the earth is where the ozone layer is found.
Stratosphere The atmosphere from approximately 12 km to 70 km. The temperature of the atmosphere increases in this region.
Stream based standards See receiving water quality standards.
Acid Rain Rain or any form of precipitation of dilute solutions of strong mineral acids, created by the mixing in the atmosphere of pollutants, typically sulfur dioxide and nitrogen oxides compounds, ...
Convection is the primary way that heat is transferred in the atmosphere. It is the process by which warm air rises up from the ground, to be replaced by cold air. The cold air is then warmed and cycles upward.
atmosphere - biosphere) of the carbon cycle. An examination of the carbon budget of a pool or reservoir can provide information about whether the pool or reservoir is functioning as a source or sink for CO2.
saturation, zone of place lying below the water table where the pore space is saturated with water under pressure greater than that of the atmosphere.
A drying agent which is capable of removing or absorbing moisture from the atmosphere in a small enclosure.
desiccation (DESS-uh-KAY-shun). A process used to thoroughly dry air; to remove virtually all moisture from air.
'Acid rain' Rain with a very low pH (often below 4.0) resulting from emissions to the atmosphere of oxides of sulfur and nitrogen. Adaptation A confusing word used to mean quite different things.
High in the atmosphere is shields us from deadly UV radiation. Near the ground, it is a pollutant that comes from car exhausts, irritating the lungs.
Acid rain is a form of acid deposition in which sulphur dioxide (SO2) and nitrogen oxides (NOx) transform into acidic particles or vapors (such as sulphuric acid (H2SO4), ammonium nitrate (NH4NO3) and nitric acid (HNO3)) in the atmosphere over ...
Chapman who is famous for his paper 'A theory of upper-atmosphere ozone, Mem. Roy. Meteorol. Soc.' in 1930 which set out the first theoretical explanation of the ozone layer in the stratosphere.
fuels, including the coal-burning power plants, automobile exhausts, factory smokestacks, and other waste vents of the human environment contribute about 22 billion tons of carbon dioxide and other greenhouse gases into the earth's atmosphere ...
ozone: Found in two layers of the atmosphere, the stratosphere and the troposphere.
The cycle by which carbon in various forms moves between the various components of the Earth's biosphere, between the atmosphere, hydrosphere (seas and oceans), ...
Because carbon dioxide remains in the atmosphere for about 120 years, it accumulates, becomes equally distributed around the world, and has global effects.
Greenhouse Effect Greenhouse gases in the earth's atmosphere permit solar radiation to pass through but prevent most of the reflected infrared radiation from the earth's surface and lower atmosphere from escaping into outer space.
Burning fossil fuels"natural gas, coal, oil, and gasoline"raises the level of carbon dioxide in the atmosphere, and carbon dioxide is a major contributor to the greenhouse effect and global warming.
The overall nutrient cycle, which involves the atmosphere, vegetation, soil, and geology of a site, is comprised of two smaller cycles: the geochemical and the biological cycle.
greenhouse effect: the effect of greenhouse gases in the atmosphere trapping a certain amount of the sun's heat as it reflects back off the surface of the earth towards space.
This gas carbon dioxide does the same in the earth's atmosphere. It acts like glass in a greenhouse, doing the same as my feathers do when I'm swimming in the very cold sea: my feathers keep me warm, ...
Airborne Particulates - Total suspended particulate matter found in the atmosphere as solid particles or liquid droplets. Chemical composition of particulates varies widely, depending on location and time of year.
hydrologic cycle The natural process by which water cycles from the atmosphere to the earth (via precipitation), and back to the atmosphere again (via evaporation and other processes).
Greenhouse Gases (GHG): gases that contribute to the so-called "Greenhouse Effect" by which infra-red radiation (itself sunlight striking the Earth and reflected at longer wavelengths) is absorbed by molecules in the atmosphere.
Greenhouse Effect - The effect produced as greenhouse gases allow incoming solar radiation to pass through the Earth's atmosphere, ...
A compound containing nitrogen that can exist in the atmosphere or as a dissolved gas in water and which can have harmful effects on humans and animals. Nitrates in water can cause severe illness in infants and domestic animals.
5: PM 10 is measure of particles in the atmosphere with a diameter of less than or equal to a nominal 10 micrometers. PM-2.5 is a measure of smaller particles in the air (2.5 micrometers).
The trapping and build-up of heat in the lower atmosphere near a planet's surface. Some of the heat flowing back towards space from the Earth's surface is absorbed by water vapour, carbon dioxide, methane and other gases in the atmosphere.
The warming of the Earth's atmosphere attributed to a build-up of carbon dioxide or other gases; some scientists think that this build-up allows the sun's rays to heat the Earth, ...
When present in the atmosphere, therefore, the gas contributes to the greenhouse effect (heating of the earth's atmosphere).
Gaseous constituents of the atmosphere, both natural and from human activity, that absorb and re-emit infrared radiation. Water vapor (H2O) is the most abundant greenhouse gas. Greenhouse gases are a natural part of the atmosphere
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Hydraulic Cycle: The continuous circulation of water between the earth and the atmosphere, through condensation, precipitation, runoff, percolation, evaporation, transpiration, groundwater storage and seepage, ...
Note 2: A primary pollutant is one emitted into the atmosphere, water, sediments or soil from an identifiable source.
Note 3: A secondary pollutant is a pollutant formed by chemical reaction in the atmosphere, water, sediments, or soil.
Releases of pollutants to the atmosphere that occur when vapors are vented from containers or tanks where materials are stored.
Acid Rain occurs when pollutants such as nitrogen oxides and sulphur dioxide from power plant emissions, metal smelting, motor vehicles and industry, combine with water in the atmosphere to form droplets of very weak acid.
Hydrologic Cycle (Water Cycle): The cycle of water movement from the atmosphere to the earth and back to the atmosphere through condensation, precipitation, evaporation, and transpiration.
 See also: Environment, Water, Air, Waste, Environmental
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