There are many barriers to energy efficiency so reducing the tax is a no-brainer.

BBC: UK to fight energy product ruling

Fonfara correctly identified one of the major barriers to energy efficiency projects.

FORBES: Connecticut ��bombarded�� with inquiries

The recommendations and actions in this Report have been carefully designed to help overcome these barriers and to leverage Recovery Act funding to help ensure that the energy efficiency market will thrive long after the Recovery Act money is fully spent.

WHITEHOUSE: THE WHITE HOUSE

But these barriers may fall to the all-powerful convenience and efficiency of the Web.

FORBES: World Weary Web

Recently Cisco undertook a study of human behavior and the barriers to effective collaboration: how it affects productivity, workplace efficiency, and business results.

FORBES: Connect

The company hopes that two other things will act as barriers to entry: the size of its library and the efficiency of its distribution system.

ECONOMIST: Three-dimensional imaging