Poznan negotiators fail to unite two controversial energy issues.
Modified E. coli produce long-chain alcohol fuels that have advantages over ethanol and butanol.
Falling oil prices could cause some alternative-fuel startups to fail.
A biomimetic ceramic that is strong and tough could be used to make lightweight vehicles.
The first prototype cell to use photonic crystals looks promising.
Nanoporous silicon that soaks up ions without self-destructing can make better batteries.
A mechanical device mimics how fish harness energy from water flow.
Recent efforts show hope for regional transmission planning for renewable power.
The automaker shows off fuel-saving tech to attract government money.
A design that draws on jet engine technology could halve the cost of generating electricity from wind.