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Plastic Apocalypse: Dangerous Microplastics Invade Alps To Artic, Found In Fresh Snow
Plastic Apocalypse: Dangerous Microplastics Invade Alps To Artic, Found In Fresh Snow
A new study has revealed that high levels of microplastics have been detected in some of the most remote regions of the world.
The discovery, published in the journal Science Advances, is the first international study on microplastics in snow, conducted by the Alfred Wegener Institute in Germany.
Melanie Bergmann, the lead scientist, and her team of researchers found microplastics from the Alps to the Arctic contained high levels of the plastic fragment, raises questions about the environmental and health implications of potential exposure to airborne plastics.
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“I was really astonished concerning the high concentrations,” said co-author Gunnar Gerdts, a marine microbiologist at the Alfred Wegener Institute.
Bergmann explains that microplastics come from industrial economies where rubber and paints are used. The tiny fragments end up in the sea, where they’re broken down by waves and ultraviolet radiation, before absorbing into the atmosphere. From there, the plastic particles are captured from the air during cloud development, can drift across the Earth via jet streams. At some point, the particles act as a nucleus around supercooled droplets can condense, and travel to Earth as snow.
“Although there is a huge surge of research into the environmental impact of plastics, there is still so much that we do not know,” said Bergmann.
Bergmann noted how the scientific community was only in its infancy of examining the process of how microplastics get sucked up into the atmosphere then scattered around the world in some form of precipitation. She said, there’s an “urgent need for research on human and animal health effects focusing on airborne microplastics.”
Glaciers’ global melt may leave Alps bare
Glaciers’ global melt may leave Alps bare
Across much of the world, the ice is trickling off the peaks. Image: By Raul Taciu on Unsplash
High mountain ice is vital to millions. As the world warms, the glaciers’ global melt could see the frozen peaks vanish.
LONDON, 12 April, 2019 – Many of the planet’s most scenic – and most valued – high-altitude landscapes are likely to look quite different within the next 80 years: the glaciers’ global melt will have left just bare rock.
By the century’s end, Europe’s famous Alps – the chain of snow- and ice-covered peaks that have become a playground of the wealthy and a source of income and pleasure for generations – will have lost more than nine-tenths of all its glacier ice.
And in the last 50 years, the world’s glaciers – in Asia, the Americas, Europe, Africa and the sub-Arctic mountains – have lost more than nine trillion tonnes of ice as global temperatures creep ever upwards in response to profligate combustion of fossil fuels.
And as meltwater has trickled down the mountains, the seas have risen by 27mm, thanks entirely to glacial retreat.
“Present mass-loss rates indicate that glaciers could almost disappear in some mountain ranges in this century”
In two separate studies, Swiss scientists have tried to audit a profit and loss account for the world’s frozen high-altitude rivers, and found a steady downhill trend.
Glacial ice is a source of security and even wealth: in the poorest regions the annual summer melt of winter snow and ice banked at altitude can guarantee both energy as hydropower and water for crops in the valleys and floodplains.
In wealthy regions, the white peaks and slopes become sources of income as tourist attractions and centres for winter sport – as well as reliable sources of power and water.
Swiss focus
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