Scientists can now turn pollution into solid rock

A manager at a test well at Reykjavik Energy's Hellisheidi geothermal power plant in Iceland. When it comes to dealing with human-caused carbon dioxide (CO2) emissions, one of the more ambitious but still largely unproven fixes could be carbon capture, which sucks CO2 out of the atmosphere or from industrial plants. Two of the biggest problems with carbon capture have been its cost, and finding ways to efficiently store or repurpose the CO2 once it's been extracted. But now a new technique could drastically overhaul this method of mitigating climate change: turning carbon emissions into solid rock. An international team of scientists...