The United Nations’ newest Global Environmental Outlook reinforces the worries of everyone concerned about the environment and our planet’s future. The 708-page report, released last week, examines human-inflicted woes on air, land and water. Scientists urge humans to immediately change their ways before we render Earth inhabitable.

To those who have been paying attention to the planet’s decline, this report will not be news. But seeing all this human-wrought destruction in one enormous document makes for a grim, and even, shocking read. A few lowlights: Most land habitats have decreased in productivity for growing food and other vegetation; urban development and agriculture have claimed 40 percent of wetlands since 1970; water quality continues to worsen, due in part to chemical pollution; biodiversity is tanking, with many land, marine and freshwater species at risk for extinction; a third of the world’s people lack safe sanitation.

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With human population expected to hit 10 billion by 2050, these problems will only increase.

“The science is clear,” Joyce Msuya, acting executive director of U.N. Environment, said in a briefing. “The health and prosperity of humanity is directly tied with the state of our environment.” If we don’t change our ways soon, she said, the problem won’t be reversible. Changes in consumption, energy creation and waste disposal are crucial.

Fortunately, the new UN report also contains solutions. For example, changing agricultural practices and redistributing food could help stem land degradation and biodiversity loss. More efficiently using and storing water, and investing in desalination, could improve the water scarcity situation.

But it will take more than well-meaning individuals to reverse Earth’s fast track toward destruction. Politicians and policy makers around the world will need to join together to devise and enforce strategies to stabilize and improve water, air and land quality before it’s too late.

Via National Geographic

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