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Tiny glass beads could save the arctic

Jessica Guttridge

Researchers are covering young arctic sea ice with silica to slow down melting

US-based initiative, Ice911 Research is covering Alaskan ice with tiny glass silica beads, with the aim to slow down the effects of global warming on the Arctic.

A spokesperson for Ice911 Research told Innovation Intelligence, “We've been testing on Arctic lake ice and we are looking to deploy on sea ice in Spring 2020.”

In 2018, the company trialled its beads over 15,000 square meters of lake ice.

With the melting of older, reflective ice, the younger ice underneath is more likely to absorb radiation from the sun, hastening the warming of the planet.

Ice911 wants to make young ice more reflective by using the hollow glass microspheres mostly made from silica, that they report are safe for animals and the environment. 

According to Ice911, the material ‘breaks down to become a part of the 2.8 billion million tonnes that currently exist in the ocean, feeding the natural silica cycle on which so many organisms depend.’

Today out of the 2.8 million billion tonnes that exist in the ocean, 246.3 billion tonnes are added naturally every year, with the company claiming they would only be adding some 0.000004% more silica to the ocean annually.

The project is a form of geoengineering, a controversial area of science that faces the obstacle of the unknown, with a litany of potential unintended aftereffects. Some critics also contend that geoengineering solutions around climate change provide an avenue to delay the most urgent task, shifting away from carbon-based energy.

It's not the only attempt at geoengineering, with Bill Gates backing a solar engineering project: a massive chemical cloud spread by high altitude flying planes that would cool the surface.

The manufacturers of the glass beads, who conducted their own safety training, reported no ill effects or signs of concerns. 
Ice911 Research say the glass beads are chemically unreactive, are perfectly spherical, float, don’t attract oil-based pollutants, and sticks to ice or water the moment it makes contact.

As a result of Climatic’s optimistic climate modelling findings, the team believe it’s possible to ‘reduce Arctic average temperatures by 1.5°C, increase ice volume by 10 per cent over 40 years, increase average ice thickness by 20-50 centimetres and reduce the climb in global temperatures.’

The Guardian has reported that the cost of covering 19,000 square miles of ice in silica would still be around US$750m, not including labour.
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