The steady upward march of fuel efficiency in light duty vehicles, and, modern building codes — delivering a new round of efficiency gains — are also playing a role. (gregor.us)
With the fundamentals of the energy industry still volatile, it's not going to be an easy upward march for the company. (canadianbusiness.com)
From here the species embarked on a slow upward march, reaching more than 1,000 ml by 500,000 years ago. (scientificamerican.com)