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mercoledì 15 novembre 2017

World Scientists’ Warning to Humanity

There’s no place like home, our warm and watery planet Earth. But we won’t be living here long if humans don’t change their ways, say 15,365 scientists from 185 countries who want your attention.
On Nov. 13, the journal BioScience published the “World Scientists’ Warning to Humanity: A Second Notice” in four languages—English, French, Spanish, and Portuguese. 
The first warning was issued in 1992 when 1,700 members of the Union of Concerned Scientists argued that humans are “on a collision course with nature.” That group, which included numerous Nobel laureates, urged the world to save the Earth from extreme climate change by burning fewer fossil fuels, preserving forests, limiting population growth, and improving food production.
“On the twenty-fifth anniversary of their call, we look back at their warning and evaluate the human response,” contemporary scientists write.
Brace yourselves—we didn’t respond well, the scientists find.
Since 1992, with the exception of stabilizing the stratospheric ozone layer, humanity has “failed to make sufficient progress in generally solving foreseen environmental challenges, and alarmingly, most of them are getting far worse,” the paper states. Its authors say they are especially troubled by “the current trajectory of potentially catastrophic climate change…from burning fossil fuels, deforestation, and agricultural production—particularly from farming ruminants for meat consumption.”
They also point out that this rapid heating has “unleashed a mass extinction event, the sixth in roughly 540 million years.” Scientists predict many current life forms could be annihilated or near extinction by the end of this century.

Sixth Mass Extinction Event 11 LUGLIO 2017

Still, there’s some hope. Humans have shown that, with concerted effort, we’re able to make positive and sustainable changes. The global decline in use of ozone-depleting substances shows progress is possible and destruction isn’t inevitable, the scientists argue. Overall, humans have made advancements in reducing extreme poverty and hunger, declines in deforestation in some regions, and rapid growth in the renewable-energy sector.
But more must be done. The paper calls on all to help by being informed consumers and voters, lest we find ourselves homeless. Time is running out, the scientists remind us:
To prevent widespread misery and catastrophic biodiversity loss, humanity must practice a more environmentally sustainable alternative to business as usual. This prescription was well articulated by the world’s leading scientists 25 years ago, but in most respects, we have not heeded their warning…We must recognize, in our day-to-day lives and in our governing institutions, that Earth with all its life is our only home.

15,000 scientists just signed the largest-ever warning about Earth’s destruction Ephrat Livni November 14, 2017

Animals as well as humans endured the smog in Greater Noida, near New Delhi. (R. S. Iyer / Associated Press)

Carbon dioxide (CO2) emissions from industry and fossil fuels are projected to rise by two per cent this year, researchers say.
The increase comes after a period of almost no growth between 2014 and 2016, according to the Global Carbon Project’s Global Carbon Budget 2017 report.
With its use of coal increasing, China’s emissions were projected to rise by 3.5 per cent. Emissions in the U.S. were projected to decline by 0.4 per cent, although coal use is to rise slightly. Atmospheric CO2 concentration was expected to rise by 2.5 parts per million in 2017.
Lead researcher Corinne Le Quere, director of the Tyndall Centre for Climate Change Research at the University of East Anglia (UEA) in England, said: “Global CO2 emissions appear to be going up strongly once again after a three-year stable period. This is very disappointing.”
Under the Paris climate agreement, reached at the end of 2015, world leaders committed to making sure global warming stays “well below” two degrees Celsius above pre-industrial levels, and to “pursue efforts” to limit the temperature rise to 1.5 degrees Celsius.
Le Quere said that with global CO2 emissions from human activities estimated at 41 billion tonnes for 2017, time was running out “on our ability to keep warming well below” the two degrees Celsius target, let alone 1.5 degrees.
This year we have seen how climate change can amplify the impacts of hurricanes with more intense rainfall, higher sea levels and warmer ocean conditions favouring more powerful storms,” she added.
This is a window into the future. We need to reach a peak in global emissions in the next few years and drive emissions down rapidly afterwards to address climate change and limit its impacts.”
The research was simultaneously published in the journals Nature Climate Change, Earth System Science Data Discussions and Environmental Research Letters.

Greenhouse gas emissions to hit new high in 2017, COP23 hears Nov 13, 2017 Kevin O'Sullivan

India’s pollution today is as deadly as the black smog that covered Britain during the Industrial Revolution Tim Hatton Nov 15 2017

We The People: India's 'Airpocalypse' NOVEMBER 12, 2017

Photographer Tim Flach is renowned for his photos that show the emotional — or human — side of animals.
Flach's images often capture creatures' moods, expressions, and gestures in ways that make us rethink our relationship with the natural world.
His newest book, "Endangered", includes text by zoologist Jonathan Baillie and tries to make readers consider the impact they have on these animals — and consider what it would mean for them to disappear.
Along with the creatures themselves, Flach photographed the landscapes these animals live in.
He spent days in frozen snow to capture a shot of the rare Siaga antelope. He swam with sharks and hippos, and visited zoos for perspectives of wildlife in settings created by humans.
The ecosystems in which many of these creatures live have already been destroyed to make room for cities and farms. But by eliminating such habitats, we remove the only places some of the most unique creatures on Earth can live.

Stunning new photos show the faces of animals on the verge of extinction Kevin Loria Nov. 14, 2017 

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