Posts Tagged 'geoengineering'

Controversy Sparked by Ocean Fertilization Project off Canada’s Coast

haida-trawler-iron-ocean-fertilization

Workers on a Haida Salmon Restoration Corporation boat release iron sulphate into the Pacific Ocean. Image by HSRC.

Last July, a chartered fishing boat strewed 100 tonnes of iron sulphate into the ocean, off the western coast of Canada. The goal was to supercharge the marine ecosystem. The iron was supposed to fertilize plankton, boost salmon population and sequester carbon. Currently, it’s still unclear whether the ocean responded as hoped, but this project has angered scientists, embarrassed a village of indigenous people and enraged opponents of geoengineering.

Read more @ SciTechDaily

Asteroid Dust Could Shield Earth from Harmful Solar Radiation

asteroids-dust-cloud-shield

Scientists propose a dust cloud made of asteroid material could help to cool Earth. Here, an artist’s depiction of what a spacecraft spewing asteroid dust might look like. CREDIT: Charlotte Lücking, based on images from ESA and NASA.

Scottish scientists have proposed to use a giant space-based dust cloud, blasted off an asteroid, to shade the Earth from the sun. Deliberately manipulating the Earth’s climate with large-scale engineering projects is called geoengineering and these proposals are always controversial because of the risk that they entail.

Read more @ SciTechDaily


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ranjitwithkinginbehand.jpgI'm Range, your host. On the menu, photos, art, stories, entertainment and reviews. Links, maths, education and social issues. I'm in Quebec (Canada) or Taiwan (R.O.C.). Follow me on Twitter.

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