Union Pacific's Big Boy No. 4014 steam engine embarks on its first coast-to-coast tour to celebrate America's 250th anniversary.

A powerful and unusually early heat dome will affect the West Coast for weeks, smashing March heat records as temperatures rise to summerlike levels.

This train traverses some of America's most beautiful landscapes on its journey from the East Coast to the Midwest.

A comparative evaluation indicates that climate anomalies over the past three years have been particularly severe. The rise in temperatures in certain regions, alongside unprecedented climate ...