Bacteria can keep carbon dioxide buried safely underground

By Andy Rice 22 June 2010

Scientists have discovered that treating CO2 with  Bacillus subtilis bacteria and a helping of urea helps secure underground CO2 storage sites. The bacteria form a protective seal in the storage chambers, and also lower the pH of the saline solution, causing the CO2 to form calcium carbonate by reacting with the calcium in the rock. It is a stable way to store the CO2 underground, and it's great for the environment. Read more: New Scientist


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Election 2019

Maimane takes hardline on illegal immigration at DA’s 2019 campaign manifesto launch

By Ferial Haffajee

"Look for lessons about haunting when there are thousands of ghosts; when entire societies become haunted by terrible deeds that are systematically occurring and are simultaneously denied by every public organ of governance and communication." ~ Avery Gordon