NR 435 Chapter 9

Acidic rain, snow or dry particles deposited from the air de to increased acids released by anthropogenic or natural resources.

Minte particles or liqid droplets suspended in the air.

A description of a surface's reflective properties.

The air immediately around us.

Projects to reduce carbon dioxide emissions from fossil fuel or to ameliorate their effects

Colorless, odorless, nonirritationg but highly toxic gas produced by incomplete combstion of fuel, incineration of biomass or solid wastes, etc.

Chemical compounds with a carbon skeleton and one or more attached chlorine and fluorine atoms.

Rising or sinking air currents that stir the atmosphere and transport heat from one are to another. Convection currents also occur in water.

The seven substances identified by the Clean Air Act that make up the largest volume of air quality degradation.

The tendency for air above the Earth to be deflected to the right ( N. hemisphere) or to the left (S. hemisphere) because of the earth's rotation.

High concentrations of dust and aerosols in the air over cities.

A climatic change marked by shiftin of a large warm water pool from the western Pacific Ocean toward the east.

Substances that enter the air withot going throgh a smokestack, such as dust from soil erosion, strip mining, rock crushing.

Trapping of heat by the earth's atmosphere, wich is transparent to incoming visible light waves, bt absorbs outgoing longwave radiation.

Areas of higher temperatures around cities.

A group of scientist from a wide variety of fields assembled by the United Nations to asses the current state of knowledge about climate change.

Powerful winds or currents of air that circulate in shifting flows, similar to oceanic currents in extent and effect on climate.

An international treaty adopted in 1997, in which 160 nations agreed to roll back CO2, methane and nitros oxide emissions.

Stored energy in a form that is not detectable by ordinary senses.

Periodic variations in tilt. eccentricity and wobble in the earth's orbit, possibly responsible for cyclic weather changes.

Seasonal reversals of wind patterns caused by the differential heating and cooling rates of the oceans and continents

Reactive gasses formed when nitrogen in fuel or air is heated with oxygen, or when bacteria or water oxidize nitrogen containing compounds.

Reactive molecule containin 3 oxygen atoms; dangerous pollutant in ambient air - but in the stratosphere protects us from uv radiation

Atmospheric aerosols such as dust, ash, soots, lint, smoke, polle, spores, algal cells, droplets of liqiud and other suspended materials.

Products of secondary atmospheric reactions, such as a smog.

The zone in the atmosphere axtending from the tropopause to about 50 km above the earth's surface.

A colorless, corrosive gas directly damageing to both plants and animals.

Atmospheric conditons in which a layer of warm air lies on top of cooler air and blocks normal convection currents.

The layer of air nearest to the earth's surface; both temperature and pressure usually decrease with increasing altitude.

Toxic or hazardous substances not listed in the original Clean Air Act becase they were not released in large quantities.

Organic chemicals that evaporate readily and exist as gases in the air.

The physical conditions of the atmosphere (moisture, temps, pressure and wind)