News roundup: EPA awards more than $2.1 million to clean up diesel engine fleets in La., Okla., Texas … Production in Gulf of Mexico shows no signs of slowing down, despite falling oil prices … Newtron Group gives $425,000 for By-You Building Learning Zone in Knock Knock Children’s Museum

    Clearing the air: The Environmental Protection Agency will award more than $2.1 million for three projects to help reduce harmful emissions from diesel engine fleets in Louisiana, Oklahoma and Texas, …

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