Climate

Cold, then warm, then rain, then everything freezes.
Joel Shurkin, Contributor
Climate models show increase in severe thunderstorms over the next century.
Marsha Lewis, Contributing Producer
Rainfall clumped into lengthier, more intense periods across Europe.
Phil Schewe, Contributor
Local governments acknowledge that some significant air and water improvements have occurred in the four decades since Earth Day was first celebrated.
Audrey Hoffer, Contributor