Mimicking a volcano to cool the planet? Will it work? The plan is to have a hose 12.4 miles long, tethered to a ship attached to a 650 foot balloon pumping out hundreds of tons of chemicle particles into the stratosphere.

Volcanic ash is able to reflect sunlight, and scientists want to mimic that to combat the increase of rising global temperatures. The researchers are testing out their theory in October with a smaller scale device that will pump out water at a lower altitude.

Not everyone thinks this is a good idea. According to some environmentalists:

"This is a huge waste of time and money and shows the UK government's disregard for UN processes. It is the first step in readying the hardware to inject particles into the stratosphere. It has no other purpose and it should not be allowed to go ahead," Pat Mooney, chair of ETC Group in Canada, told The Guardian.

Also, there is no say on what this would do to the increased carbon dioxide already in the atmosphere.

Sir Martin Rees, the former president of Royal Society (which is funding the work with a $2.6 million grant), strongly supports the balloon approach as a plan B to reducing greenhouse gas emissions.

[The Guardian via PhysOrg; Image: Shutterstock/Pavel Svoboda]