The owner of one of the world's largest truck fleets recently unveiled what it's dubbed the WAVE (Walmart Advanced Vehicle Experience) concept truck as part of a broader push to incorporate sustainability into the megastore's operations.
The NRDC called the passage of the bill in the House "a major weakening of the Clean Air Act." Prospects are weaker in the Senate, and President Obama would be expected to veto it if it came to his desk, however.
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