Environmental Problems


LOOMING EXTINCTION CRISIS



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Environmental Problems

LOOMING EXTINCTION CRISIS

100 times faster

The American black bear is one of more than 22,000 species threatened with extinction. During the past century, animals have been disappearing about 100 times faster than they used to, scientists from different American universities warned in a new study. According to the WWF, around 70 species go extinct every day.


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4. Soil degradation.

Problem: Overgrazing, monoculture planting, erosion, soil compaction, overexposure to pollutants, land-use conversion - there's a long list of ways that soils are being damaged. About 12 million hectares of farmland a year get seriously degraded, according to UN estimates.

Solutions: A wide range of soil conservation and restoration techniques exist, from no-till agriculture to crop rotation to water-retention through terrace-building. Given that food security depends on keeping soils in good condition, we're likely master this challenge in the long run. Whether this will be done in a way equitable to all people around the globe, remains an open question.

Picture gallery: When the earth turns to dust 




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