Engineers are making strides in reducing air pollution

According to the Environmental Protection Agency (EPA), the average adult breathes 3,000 gallons of air per day—yet the same air that fuels our bodies also can harm them. In fact, inhaling certain air pollutants can worsen ...

Dead zones in Gulf caused, in part, by farm drainage

(PhysOrg.com) -- The tile drainage systems in upper Mississippi farmlands -- from southwest Minnesota to across Iowa, Illinois, Indiana and Ohio -- are the biggest contributors of nitrogen runoff into the Gulf of Mexico, ...

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