CTV: Converting land for biofuel crops results in major carbon emissions and actually worsens the problem of global warming instead of mitigating it, says a new study. The study by Nature Conservancy, an organization working to protect ecologically important lands and waters, will be published in Science magazine later this month. "Our study found that any biofuel that causes clearing of natural ecosystems will increase global warming," Joe Fargione, a scientist for The …