In an interesting twist, the leading alternative refrigerant being considered by European automakers is carbon dioxide.
Pitchfork, widely viewed as the world's leading alternative music website, relaunched this week.
In the United States, the leading alternative seems to be R152a, with a warming potential of 120-140.
Beginning in 2003 for an audience of 300, Green Man quickly became the UK's leading alternative folk festival.
It established Beck as the leading alternative rocker for an audience that had grown weary of the earnestness of grunge.
The list of 331 drugs, for example, does not include simvastatin, the generic version of Zocor, which is the leading alternative to the popular cholesterol drug Lipitor.
Ethical Consumer, which describes itself as the UK's leading alternative consumer magazine, has a Christmas gift guidefor those on the hunt for present ideas.
Many specialists on North Korea say that something they have dubbed "hawk engagement" is the leading alternative to Mr. Clinton's approach.
It seemed like an appropriate time to discuss why, although I'm no huge fan of the authority, I also have my doubts about its leading alternative.
For contenders like Mr. Priebus, who has emerged as a leading alternative to Mr. Steele, the public campaign for chairman is a delicate one.
But Mr. Gingrich failed to gain a strong enough finish in Tennessee and Oklahoma to displace Rick Santorum as the leading alternative to Mitt Romney.
