Post&Parcel--The cash-strapped US Postal Service struggled to improve its environmental impacts last year, as facility energy use rose 5% and fuel use increased more than 2%.

    A growth in the number of addresses USPS serves has outpaced the improvement in its vehicle efficiency, it said.
    In its latest annual Sustainability Report, the Postal Service recorded a less than one percentage point increase in its greenhouse gas emissions during the 2011 fiscal year. Read more!
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