An image believed to be that of a hole-punch cloud. Scientists say airplanes create these patterns when they fly through certain types of clouds. The water in the clouds can turn to rain or snow and fall to the ground. H. Raab/Vesta/Wikimedia Commons hide caption

toggle caption H. Raab/Vesta/Wikimedia Commons
Snow Delay At The Airport? Blame Planes And Clouds
  • Download
  • <iframe src="https://www.npr.org/player/embed/137521577/137534329" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Isolation Proves Dangerous On 'Rat Island'
  • Download
  • <iframe src="https://www.npr.org/player/embed/137368821/137519054" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Marijuana Plants Discovered At National Forest
  • Download
  • <iframe src="https://www.npr.org/player/embed/137506912/137506889" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
White House Pushes For Higher Fuel Efficiency
  • Download
  • <iframe src="https://www.npr.org/player/embed/137506908/137506888" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

A demonstrator uses a slingshot during a protest against a planned high-speed rail line running through the Susa valley in Chiomonte, northern Italy. STR/AFP/Getty Images hide caption

toggle caption STR/AFP/Getty Images
Anticipating Climate Catastrophe, But With Optimism
  • Download
  • <iframe src="https://www.npr.org/player/embed/137420871/137420861" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Creating Reservoirs Under Roads And Parking Lots
  • Download
  • <iframe src="https://www.npr.org/player/embed/137397969/137397947" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Forecasting 'Dead Zone' Conditions in the Gulf
  • Download
  • <iframe src="https://www.npr.org/player/embed/137397949/137397942" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Valvoline Introduces Greener Motor Oil
  • Download
  • <iframe src="https://www.npr.org/player/embed/137360762/137360740" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Bob Carter, group vice president and general manager, Toyota Division, introduces the Prius v midsize hybrid-electric vehicle (left) and the Prius C Concept vehicle at the North American International Auto Show in Detroit on Jan. 10. Paul Sancya/AP hide caption

toggle caption Paul Sancya/AP
As Rivals Unveil Hybrids, Toyota Boosts Prius
  • Download
  • <iframe src="https://www.npr.org/player/embed/137345261/137360741" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

An environmental clean water protester participates in a rally at the Pennsylvania state capitol in Harrisburg against the drilling of the Marcellus Shale natural gas formation. Bradley C. Bower/AP hide caption

toggle caption Bradley C. Bower/AP
Air Quality Concerns Threaten Natural Gas's Image
  • Download
  • <iframe src="https://www.npr.org/player/embed/137197991/137317308" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Supreme Court Blocks Climate Change Lawsuit
  • Download
  • <iframe src="https://www.npr.org/player/embed/137313482/137313498" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript