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Geoengineering side effects could be potentially disastrous, research shows
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Geoengineering side effects could be potentially disastrous, research shows

By Henrik Palmgren | redice.tv
What’s this? A glimmer of common sense? Perhaps they’ve finally started listening...
Although this stance from the mainstream is heartening, it still supports the idea that the death-spiral climate change they keep flogging (hotter? colder? what?) is still completely due to human activity, and we’re ultimately still in control of the climate.

From The Guardian...

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Geoengineering side effects could be potentially disastrous, research shows
By John Vidal | The Guardian

Large-scale human engineering of the Earth’s climate to prevent catastrophic global warming would not only be ineffective but would have severe unintended side effects and could not be safely stopped, a comparison of five proposed methods has concluded.

Science academies around the world as well as some climate activists have called for more research into geoengineering techniques, such as reflecting sunlight from space, adding vast quantities of lime or iron filings to the oceans, pumping deep cold nutrient-rich waters to the surface of oceans and irrigating vast areas of the north African and Australian deserts to grow millions of trees. Each method has been shown to potentially reduce temperature on a planetary scale.

But researchers at the Helmholtz Centre for Ocean Research Kiel, Germany, modelled these five potential methods and concluded that geoengineering could add chaos to complex and not fully understood weather systems. Even when applied on a massive scale, the most that could be expected, they say, is a temperature drop of about 8%.

The potential side effects would be potentially disastrous, say the scientists, writing in Nature Communications. Ocean upwelling, or the bringing up of deep cold waters, would cool surface water temperatures and reduce sea ice melting, but would unbalance the global heat budget, while adding iron filings or lime would affect the oxygen levels in the oceans. Reflecting the sun’s rays into space would alter rainfall patterns and reforesting the deserts could change wind patterns and could even reduce tree growth in other regions.

In addition, say the scientists, two of the five methods considered could not be safely stopped. "We find that, if solar radiation management or ocean upwelling is discontinued then rapid warming occurs. If the other methods are discontinued, less dramatic changes occur. Essentially all of the CO2 that was taken up remains in the ocean."

[...]

Read the full article at: theguardian.com



READ: Hack the Planet Now! - Britain’s Senior Scientist Pushes for GeoEngineering

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