Volkswagen's own staff and one of its suppliers warned about emissions test cheating years ago, according to German newspapers.
This weekend will give moon gazers a rare treat: A supermoon lunar eclipse, which only comes around once in a while
Pope Francis is neither an economist or a policymaker, but one analyst told CNBC the pontiff can speak to 'what's working.'
Green schools are not only good for the environment, they may be good for kids' health, too, says Rick Fedrizzi.
"The Department of Justice is working closely with the EPA in the investigation into these allegations."
CNBC's Hampton Pearson reports on the EPA's warning to automakers over compliance efforts following the Volkswagen emissions scandal.
Former GM Vice Chairman Bob Lutz tells CNBC he would not know where to start if he were the next CEO of Volkswagen.
The message of Pope Francis in his historic visit to the U.S. is one that all Americans can embrace, Notre Dame University's president says.
John Keung, CEO of Building and Construction Authority (BCA), says nearly 30 percent of the buildings in Singapore are green buildings which provide better indoor environments.
The move would be a substantial step by the world's largest polluter to reduce emissions from major industries, the NYT reports.
For a year, VW officials insisted to U.S. regulators that tests on its diesel cars showing a spike in pollution levels on the road were in error.
Singapore has closed its schools after the pollution levels caused by the smoky smog enveloping the city hit dangerously high levels.
More than two years after researchers reported abnormalities in Volkswagen emissions, the automaker is engulfed in a scandal.
In a historic presentation to Congress, Pope Francis urged lawmakers to take "courageous actions" on global warming, poverty and the refugee crisis.
There is now enough human-made debris floating through space that some companies believe they can build a business around it.
Hugh Martin, CEO of Sensity Systems, explains why smart cities are a huge market in China, especially because of the country's pollution problem.
In Europe, some automakers have taped up test cars' doors and grilles to bolster their aerodynamics, the NYT reports.
Biofuels could transform the aviation industry. CNBC's Sustainable Energy takes a look how.
The fast-moving wildfires in California are threatening some of the state's most lucrative wine-producing regions and at the peak of harvest.
CNBC's "Sustainable Energy" takes a look at how wind, sunlight, tides and geothermal heat are becoming a big part of the world's energy mix.