1.) Are poor stratospheric water vapor readings responsible for global warming trends?
2.) Jaguar is developing a range-extended luxury hybrid that uses a tiny gas turbine.
3.) Flywheels can help store energy from intermittent alternative energy sources such as wind and solar.
4.) HIV/AIDS researchers solve a key puzzle after 20 years' worth of attempts.
5.) What's a college degree really worth? (Not as much as you think.)
This post was originally published on Smartplanet.com