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Nature is in the worst shape in human history, U.N. report says


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https://www.latimes.com/world/la-sci-sn-un-bio-diversity-report-20190506-story.html

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Nature is in more trouble now than at any other time in human history, with extinction looming over 1 million species of plants and animals, scientists said Monday.

It's all because of humans, but it's not too late to fix the problem, according to the United Nations' first comprehensive report on biodiversity.

 

Conservation scientists from around the world convened in Paris to issue the report, which exceeded 1,000 pages. The Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services included more than 450 researchers who used 15,000 scientific and government reports. The report's summary had to be approved by representatives of all 109 nations.

Some nations hit harder by the losses, like small island countries, wanted more in the report. Others, such as the United States, were cautious in the language they sought, but they agreed "we're in trouble," said Rebecca Shaw, chief scientist for the World Wildlife Fund, who observed the final negotiations.

"This is the strongest call we've seen for reversing the trends on the loss of nature," Shaw said.

The findings are not just about saving plants and animals, but about preserving a world that's becoming harder for humans to live in, said Robert Watson, a former top NASA and British scientist who headed the report.

"We are indeed threatening the potential food security, water security, human health and social fabric" of humanity, Watson told the Associated Press. He said the poor in less developed countries bear the greatest burden.

The report's 39-page summary highlighted five ways people are reducing biodiversity:

Turning forests, grasslands and other areas into farms, cities and other developments. The habitat loss leaves plants and animals homeless. About three-quarters of Earth's land, two-thirds of its oceans and 85% of crucial wetlands have been severely altered or lost, making it harder for species to survive, the report said.

Overfishing the world's oceans. A third of the world's fish stocks are overfished.

Permitting climate change from the burning of fossil fuels to make it too hot, wet or dry for some species to survive. Almost half of the world's land mammals — not including bats — and nearly a quarter of the birds have already had their habitats hit hard by global warming.

Polluting land and water. Every year, 300 million to 400 million tons of heavy metals, solvents and toxic sludge are dumped into the world's waters.

Allowing invasive species to crowd out native plants and animals. The number of invasive alien species per country has risen 70% since 1970, with one species of bacteria threatening nearly 400 amphibian species.

 

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https://www.cnn.com/2019/05/06/world/one-million-species-threatened-extinction-humans-scn-intl/index.html

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One million of the planet's eight million species are threatened with extinction by humans, scientists warned Monday in what is described as the most comprehensive assessment of global nature loss ever.

Their landmark report paints a bleak picture of a planet ravaged by an ever-growing human population, whose insatiable consumption is destroying the natural world.

The global rate of species extinction "is already tens to hundreds of times higher than it has been, on average, over the last 10 million years," according to the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), a UN committee, whose report was written by 145 experts from 50 countries.

 

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