Protein^®

Usually when we talk about transportation emissions causing climate change here at TreeHugger, we focus on CO2 emissions or methane emissions—the usual suspects in the global warming discussion. In regards to cargo shipping, companies are investigating how much slowing down ships can reduce emissions. A new study conducted by the National Oceanic and Atmospheric Administration and the University of Colorado shows, however, that it’s not just the carbon emissions from cargo shipping which are a serious global warming concern, but also the soot these s...