Legal scholars argue that when executive branch agencies impose conditions on federal funds, courts should give these cases special scrutiny.

After screwworm cases were reported in Texas and New Mexico, Colorado is taking preventive measures against the pest.

A National Academy of Sciences report examined the latest advances in extreme event attribution science. As four of the authors explain, the type of disaster makes a difference.

Wastewater from Pennsylvania’s oil and gas wells is salty and radioactive, and doesn’t suppress dust. Two researchers explain why it keeps ending up on rural roads.