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deforestation : the act or process of removing all or most of the trees from a forest
part of speech noun : Deforestation of hills and mountains conntributes to mudslides when there's heavy rain
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overfishing: the act of catching too many fisch so there are not many left
part of speech noun : A lot of fish species are in danger due to averfishing
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acid rain : rain , snow or sleet containing harmgul chemicals from the burning of fossil fuels
part of speech noun : Acid rain can pollute water and soil , harm crops and trees and even damage the surface if buildings
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fossil fuel : a natural fuel , such as coal or oil , formed far underneath the ground and over millions of years from the remains of living things
part of speech noun : burning fossil fuels releases harmful gases
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climate change : long term changes in earth's climate , such as rising temperatures and lower rainfall
part of speech noun : Climate change is affecting every country on every continent
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coastal flooding : when dry , low - lying land is flooded by seawater
part of speech noun : Coastal flooding will affect millions of people if sea levels rise
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Untreated sewage : sewage that has not been processed to remove contaminats
part of speech noun : the bay was polluted with untreated sewage
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Endangered species : a specias of animal or plant that is at risk of extinction
part of speech noun : the bald eagle is no longer an endangered species
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greenhouse : any of the gases that trap heat in the atmosphere and contribute to global warming
part of speech noun : greenhouse gases include water vapor , carbon dioxide and methane
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Global warming : the increase in the world's temperature caused by the increase of greenhouse gases in the atmosphere
part of speech noun : world leaders need to address the problem of global warming
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desertification :the process by wich a desert grows or a region becomes a desert
part of speech noun : Desertification was caused by intensive farming in the area
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soil waste : material such as household trash , food waste , yard waste , construction debris , scarp metal and so on
part of speech noun : solid waste is disposed of in a landfill
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air pollution : contamination of the air by smoke and gases
part of spech noun : the most seious air pollution comes from the burning os fossil fuels
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