The ports of Seattle, Tacoma and Metro Vancouver, Canada, aim to cut diesel emissions by 75 percent per ton of cargo moved by 2015 and 80 percent by 2020, from a 2005 baseline. Factoring in projected cargo growth, this will result in overall reductions of 70 percent by 2015 and 75 percent by 2020. The ports also set a goal to reduce greenhouse gases by 10 percent by 2015 and 15 percent by 2020 per ton of cargo moved. The goals are part of the 2013 Northwest Ports Clean Air Strategy Update, which was adopted this week.