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the whole mass of air surrounding the earth


the act of cutting down trees


to damage something


reducing something to an insufficient amount


to keep something from moving or growing


the complex of a community of organisms and its environment functioning as an ecological unit


something sent out or given off

energy -efficient

Energy efficient homes are composed of a network of elements working together to reduce the overall amount of energy consumption.


the process of slowly destroying the surface through wind or rain

fossil fuels

fuels (as coal, oil, or natural gas) formed in the earth from plant or animal remains

glacial melts

a large persistent body of ice (glacier) that is melting

greenhouse effect

warming of the surface and lower atmosphere of a planet (as Earth or Venus) that is caused by conversion of solar radiation into heat in a process involving selective transmission of short wave solar radiation by the atmosphere, its absorption by the planet's surface, and reradiation as infrared which is absorbed and partly reradiated back to the surface by atmospheric gases


places where plants and animals are found


the process of causing to burn to ashes


to build and operate factories and businesses in a city, region, country, etc.


to make something less harmful


a form of oxygen that is found in a loyer high in the earth's atmosphere


the amount of rain or snow that falls


unexpected results or consequences of an action


that can be replaced naturally

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