An imperfect system for a fossil-fuel world, green credits are still valuable.
Policymakers are fallible judges of the risk and return of technology investments.
The 2015 winner of the $500,000 Lemelson-MIT Prize, which honors outstanding midcareer inventors, discusses the urgent need for new R&D approaches that offer both scalable results and genuine impact.
Why low oil prices will not halt the clean-energy revolution.
Record low auction prices indicate an unsustainable solar rush is accelerating.
Giving up on climate change means giving up on being human.
Applying the theory of disruptive innovation to Tesla is not as simple as it seems.
Is there a realistic roadmap to 100% renewables?
How smart energy policy can ease conflicts.
And there's a 50:50 chance of a Three Mile Island-scale disaster in the next 10 years, according to the largest statistical analysis of nuclear accidents ever undertaken.