Concentrations are typically elevated in the summer. The past several years, nitrates have dropped to near-zero ...

That’s the Payment-in-Kind (PIK) program the U.S. Department of Agriculture rolled out in 1983 to idle millions of acres ...

Nitrate concentrations, exacerbated by a wet spring that followed years of dry conditions, reached near record highs in Iowa ...

From sustainable self-builds to transformative makeovers, these inspiring projects showcase what’s possible with great design ...