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 Federal Circuit held that the state of California did not infringe on an emissions trading-related patent, allowing the state's greenhouse gas emissions cap-and-trade program to continue. The plaintiff owns a U.S. patent that covers a method and apparatus for using electronic systems to claim an...