Post&Parcel--FedEx Corp has taken big strides to reduce its consumption of petroleum and cut its carbon emissions, according to its latest Global Citizenship report.

The company has been aiming at a target of reducing its carbon emissions by 20% by 2020, compared to a 2005 baseline, and so far up to the end of the 2010 calendar year, it has achieved a 13.5% drop.

FedEx said in its report that research it has commissioned from Yale University suggests policies and practices that protect the environment can improve trade competitiveness. With the transportation a big part of the company’s operating costs, being greener has also helped improve operational efficiency.