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Climate climate chance reverse within a few years by geoengineering | Breaking News Man-Made

Climate Chance Reverse Within A Few Years By Geoengineering

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by: theguardian.com
climate chance reverse within a few years by geoengineering | Breaking News

Scholars from developing countries call for greater say in solar geoengineering research, arguing poor nations have most at stake. Solar geoengineering has been floated as an ‘outlandish and unsettling’ answer to climate change. It sounds like the stuff of science fiction: the creation, using balloons or jets, of a manmade atmospheric sunshade to shield the most vulnerable countries in the global south against the worst effects of global warming.
Graphic balloon with pump spreads particals in the atmosphere

Scientists suggest a giant sunshade in the sky could solve global Climate change

But amid mounting interest in 'solar geoengineering' – not least among western universities – a group of scientists from developing countries has issued a forceful call to have a greater say in the direction of research into climate change, arguing that their countries are the ones with most at stake. Scientists have long known that manmade events like pollution in the atmosphere, smoke from forest fires and volcanic eruptions can create a cooling effect.

That has led scientists at Harvard University to propose their own experiment, which they call 'stratospheric controlled perturbation effect', or SCoPEx for short. It involves using a balloon to test the controversial proposition that aerosols released at a height of 20km in the Earth’s atmosphere can alter the reflective properties of cloud cover.

Now a dozen scholars, from countries including Bangladesh, Brazil, China, Ethiopia, India, Jamaica and Thailand, have joined the debate, arguing in the journal Nature that poor countries should take a lead in the field since they have most to gain or lose from the technology.
The cooling effect has long been known in phenomena such as 'ship tracks' – narrow artificial clouds of pollution, created by emissions from ships, that contain more and smaller water droplets than typical clouds, making them brighter and more reflective of sunlight.

Solar geoengeneering

“Solar geoengineering – injecting aerosol particles into the stratosphere to reflect away a little inbound sunlight – is being discussed as a way to cool the planet, fast,” the scientists write in Nature. “Solar geoengineering is outlandish and unsettling. It invokes technologies that are redolent of science fiction – jets lacing the stratosphere with sunlight-blocking particles, and fleets of ships spraying seawater into low-lying clouds to make them whiter and brighter to reflect sunlight. “Yet, if such approaches could be realized technically and politically, they could slow, stop or even reverse the rise in global temperatures within one or two years.
“The technique is controversial, and rightly so,” they add. “It is too early to know what its effects would be: it could be very helpful or very harmful. Developing countries have most to gain or lose. In our view, they must maintain their climate leadership and play a central part in research and discussions around solar geoengineering.”

Solar radiation management geoengineering

In an interview with Reuters, Dr Atiq Rahman, director of the Bangladesh Centre for Advanced Studies and the article’s lead author, amplified his arguments. “Clearly (solar radiation management geoengineering) could be dangerous, but we need to know whether, for countries like Bangladesh, it would be more or less risky than passing the 1.5C warming goal. This matters greatly to people from developing countries and our voices need to be heard.
“The overall idea (of solar geoengineering) is pretty crazy, but it is gradually taking root in the world of research,” said Rahman. The solar geoengineering studies may be helped by a new $ 400,000 research project, the solar radiation management governance initiative (SRMGI), which is issuing a first call for scientists to apply for finance this week. Scientists in developing nations study the regional impacts of solar geoengineering, for instance on droughts, floods or monsoons.

Rahman said the academics were not taking sides about whether geoengineering would work. And not everyone is convinced by the prospect of the technology. In a leaked draft of a report about global warming due for publication a UN panel of climate experts express skepticism about solar geoengineering, suggesting it may be 'economically, socially and institutionally infeasible'.

By: TheGuardian. Cover photo: Installation von Berndnaut Smilde in Sankt Peter Köln, heribert-graab.de

https://www.whatsorb.com/category/climate

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Breaking News, as the world changes…

In our world, WhatsOrb refuses to turn away from the changes in our society and environment which succeeds each other at a rapid pace.

For WhatsOrb, publishing on the environment is a priority. We give reporting on climate, nature, waste, lifestyle and sustainable solutions the prominence it deserves.

At this turbulent time for ‘all’ species and our planet, we are determined to inform readers about threats, consequences and solutions based on facts, not on political prejudice or business interests.

WhatsOrb Breaking News will be published as soon as urgent events from around the world and startling sustainable innovations reach us.

If there is anything we should know and publish about, please send a note to: info@whatsorb.com or write your own story on: www.whatsorb.comthe only news site which gives you a ‘sustainable voice!’

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Climate Chance Reverse Within A Few Years By Geoengineering

Scholars from developing countries call for greater say in solar geoengineering research, arguing poor nations have most at stake. Solar geoengineering has been floated as an ‘outlandish and unsettling’ answer to climate change. It sounds like the stuff of science fiction: the creation, using balloons or jets, of a manmade atmospheric sunshade to shield the most vulnerable countries in the global south against the worst effects of global warming. Scientists suggest a giant sunshade in the sky could solve global Climate change But amid mounting interest in 'solar geoengineering' – not least among western universities – a group of scientists from developing countries has issued a forceful call to have a greater say in the direction of research into climate change, arguing that their countries are the ones with most at stake. Scientists have long known that manmade events like pollution in the atmosphere, smoke from forest fires and volcanic eruptions can create a cooling effect. That has led scientists at Harvard University to propose their own experiment, which they call 'stratospheric controlled perturbation effect', or SCoPEx for short. It involves using a balloon to test the controversial proposition that aerosols released at a height of 20km in the Earth’s atmosphere can alter the reflective properties of cloud cover. Now a dozen scholars, from countries including Bangladesh, Brazil, China, Ethiopia, India, Jamaica and Thailand, have joined the debate, arguing in the journal Nature that poor countries should take a lead in the field since they have most to gain or lose from the technology. The cooling effect has long been known in phenomena such as 'ship tracks' – narrow artificial clouds of pollution, created by emissions from ships, that contain more and smaller water droplets than typical clouds, making them brighter and more reflective of sunlight. Solar geoengeneering “Solar geoengineering – injecting aerosol particles into the stratosphere to reflect away a little inbound sunlight – is being discussed as a way to cool the planet, fast,” the scientists write in Nature. “Solar geoengineering is outlandish and unsettling. It invokes technologies that are redolent of science fiction – jets lacing the stratosphere with sunlight-blocking particles, and fleets of ships spraying seawater into low-lying clouds to make them whiter and brighter to reflect sunlight. “Yet, if such approaches could be realized technically and politically, they could slow, stop or even reverse the rise in global temperatures within one or two years. “The technique is controversial, and rightly so,” they add. “It is too early to know what its effects would be: it could be very helpful or very harmful. Developing countries have most to gain or lose. In our view, they must maintain their climate leadership and play a central part in research and discussions around solar geoengineering.” Solar radiation management geoengineering In an interview with Reuters, Dr Atiq Rahman, director of the Bangladesh Centre for Advanced Studies and the article’s lead author, amplified his arguments. “Clearly (solar radiation management geoengineering) could be dangerous, but we need to know whether, for countries like Bangladesh, it would be more or less risky than passing the 1.5C warming goal. This matters greatly to people from developing countries and our voices need to be heard. “The overall idea (of solar geoengineering) is pretty crazy, but it is gradually taking root in the world of research,” said Rahman. The solar geoengineering studies may be helped by a new $ 400,000 research project, the solar radiation management governance initiative (SRMGI), which is issuing a first call for scientists to apply for finance this week. Scientists in developing nations study the regional impacts of solar geoengineering, for instance on droughts, floods or monsoons. Rahman said the academics were not taking sides about whether geoengineering would work. And not everyone is convinced by the prospect of the technology. In a leaked draft of a report about global warming due for publication a UN panel of climate experts express skepticism about solar geoengineering, suggesting it may be 'economically, socially and institutionally infeasible'. {youtube} By: TheGuardian. Cover photo: Installation von Berndnaut Smilde in Sankt Peter Köln, heribert-graab.de https://www.whatsorb.com/category/climate