Cellulosic ethanol continues to struggle to use inedible crop waste to match ethanol from corn—and fossil fuels
Scientists have learned a lot in the last 10 years since Al Gore’s documentary
How to store energy as heat cheaply represents a big challenge for solar power
The streak of record warm months continues, thanks to El Niño and global warming
The National Academy of Sciences reaffirmed GMO safety and pointed to the potential for future improvements
The concept of life after death is being given new meaning with an app and urn that allow you to closely monitor the growth of a tree planted in the ashes of a loved one. Edward Baran reports.