Grist: Climate protection is getting down and dirty Down Under. Soil serves as a great reservoir for carbon, yet it`s often overlooked in climate protection efforts. That`s changing in Australia, where farmers will soon be able to earn cash for projects that store carbon in the soil - such as tree plantings, dung beetle releases, and composting. Aussie farmers are already eligible to make money by reducing greenhouse gas pollution from livestock, manure, and rice fields. Australia`s environment minister...