Guam Environment - 2021


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Environment - current issues

fresh water scarcity; reef damage; inadequate sewage treatment; extermination of native bird populations by the rapid proliferation of the brown tree snake, an exotic, invasive species


tropical marine; generally warm and humid, moderated by northeast trade winds; dry season (January to June), rainy season (July to December); little seasonal temperature variation

Land use

agricultural land: 33.4% (2018 est.)

arable land: 1.9% (2018 est.)

permanent crops: 16.7% (2018 est.)

permanent pasture: 14.8% (2018 est.)

forest: 47.9% (2018 est.)

other: 18.7% (2018 est.)

Revenue from forest resources

forest revenues: 0% of GDP (2018 est.)

country comparison to the world: 171

Revenue from coal

coal revenues: 0% of GDP (2018 est.)

country comparison to the world: 105


urban population: 95% of total population (2021)

rate of urbanization: 0.84% annual rate of change (2020-25 est.)

Waste and recycling

municipal solid waste generated annually: 141,500 tons (2012 est.)

municipal solid waste recycled annually: 25,258 tons (2011 est.)

percent of municipal solid waste recycled: 17.9% (2011 est.)

NOTE: The information regarding Guam on this page is re-published from the 2021 World Fact Book of the United States Central Intelligence Agency and other sources. No claims are made regarding the accuracy of Guam 2021 information contained here. All suggestions for corrections of any errors about Guam 2021 should be addressed to the CIA or the source cited on each page.

This page was last modified 16 Dec 23, Copyright © 2023 ITA all rights reserved.