Times of India: In a major breakthrough that could help in the fight against global warming, a team of five Indian scientists from four institutes of the country have discovered a naturally occurring bacteria which converts carbon dioxide (CO2) into a compound found in limestone and chalk. When used as an enzyme â” biomolecules that speed up a chemical reaction â” the bacteria has been found to transform CO2 into calcium carbonate (CaCO3), which can fetch minerals of economic value, said Dr Anjana …