A district court issued a preliminary injunction enjoining California from enforcing Proposition 65’s carcinogenicity warning requirement for glyphosate. On the evidence before the court, the required warning for glyphosate does not appear to be factually accurate and uncontroversial because it co...

A district court held that EPA's year-long delay in implementing formaldehyde emission standards for domestically manufactured and imported composite wood products violated the Formaldehyde Standards in Composite Wood Products Act. The Act required EPA to issue implementing regulations no later than...

The Tenth Circuit ruled that an Oklahoma citizen has no claim against an oil company on allegations that his cancer was caused by decades of breathing benzene fumes from its oil refinery near his home. In 2011, the man was diagnosed with multiple myeloma. In 2016, he brought suit against the oil com...

The D.C. Circuit held that EPA unlawfully revoked the 1997 ozone NAAQS when it implemented the 2008 standard. In 2008, EPA set the ozone NAAQS at 75 parts per billion (ppb). In 2015, when implementing the standard, the Agency eliminated the 1997 standard of 84 ppb on the grounds that it was impossib...

A district court held that EPA failed to act when it did not rule within 60 days on Connecticut's petition concerning upwind pollution. In June 2016, Connecticut filed a petition pursuant to §126(b) of the CAA for EPA to make a finding that Brunner Island is emitting air pollutants that significant...

The First Circuit held that a pesticide company is not liable for cleaning up PCB-laden caulk installed in a Massachusetts middle school in the 1960s. Before August 1970, the pesticide company sold PCB mixtures to formulators of building materials, who then incorporated them into various end product...