Aerial view of deforestation in eastern Madagascar. Click image for more pictures of deforestation. (Photo by R. Butler)
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CONSEQUENCES OF DEFORESTATION
By Rhett Butler | Last updated July 22, 2012
Rainforests around the world still continue to fall. Does it really make a difference? Why should anyone care if some plants, animals, mushrooms, and microorganisms perish? Rainforests are often hot and humid, difficult to reach, insect-ridden, and have elusive wildlife.
Actually the concern should not be about losing a few plants and animals; mankind stands to lose much more. By destroying the tropical forests, we risk our own quality of life, gamble with the stability of climate and local weather, threaten the existence of other species, and undermine the valuable services provided by biological diversity.
While in most areas environmental degradation has yet to reach a crisis level where entire systems are collapsing, it is important to examine some of the effects of existing environmental impoverishment and to forecast some of the potential repercussions of forest loss. Continuing loss of natural systems could make human activities increasingly vulnerable to ecological surprises in the future.
The most immediate impact of deforestation occurs at the local level with the loss of ecological services provided by tropical rainforests and related ecosystems. Such habitats afford humans valuable services such as erosion prevention, flood control, water filtration, fisheries protection, and pollination—functions that are particularly important to the world's poorest people, who rely on natural resources for their everyday survival. Forest loss also reduces the availability of renewable resources like timber, medicinal plants, nuts and fruit, and game.
Over the longer term, deforestation of tropical rainforests can have a broader impact, affecting global climate and biodiversity. These changes are more challenging to observe and forecast from local effects, since they take place over a longer time scale and can be difficult to measure.
Extreme Deforestation - Easter Island
Review questions:
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Recent news
Top Indonesian official calls out misinformation in environmental campaign
(05/20/2013) Indonesia's top REDD+ official confirmed there is no plan to open 1.2 million hectares of forest in Sumatra's Aceh Province, calling into question numbers used by environmentalists in their bid to stop reclassification of the province's forest land.
Deforestation in the Brazilian Amazon pacing 88% higher than last year's rate
(05/18/2013) Satellite analysis by a Brazil-based NGO indicates that deforestation in the Brazilian Amazon continues to pace well ahead of last year, when the government passed a weakened version of its law governing use of forest lands.
In landmark ruling, Indonesia's indigenous people win right to millions of hectares of forest
(05/17/2013) In a landmark ruling, Indonesia's Constitutional Court has invalidated the Indonesian government's claim to millions of hectares of forest land, potentially giving indigenous and local communities the right to manage their customary forests, reports Mongabay-Indonesia. In a review of a 1999 forestry law, the court ruled that customary forests should not be classified as "State Forest Areas". The move is significant because Indonesia's central government has control over the country's vast forest estate, effectively enabling agencies like the Ministry of Forestry to grant large concessions to companies for logging and plantations even if the area has been managed for generations by local people.
NGO: conflict of interests behind Peruvian highway proposal in the Amazon
(05/16/2013) As Peru's legislature debates the merits of building the Purús highway through the Amazon rainforest, a new report by Global Witness alleges that the project has been aggressively pushed by those with a financial stake in opening up the remote area to logging and mining. Roads built in the Amazon lead to spikes in deforestation, mining, poaching and other extractive activities as remote areas become suddenly accessible. The road in question would cut through parts of the Peruvian Amazon rich in biodiversity and home to indigenous tribes who have chosen to live in "voluntary isolation."
Gabon convicts environmentalist of defamation in palm oil case
(05/15/2013) An environmental activist in Gabon is facing jail time and a $10,000 fine over his campaign against a Singaporean agroindustrial giant's plan to develop tens of thousands of hectares in oil palm, timber, and rubber plantations in the Central African nation.
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