They point out, though, that Iraq might conceal evidence of gas use.

Until the early 2000s, natural gas use in Israel was minimal.

By most accounts, gas use will reach 20 trillion cubic feet this year, the highest since 1979.

But the law of supply and demand being what it is, cheap gas also means more gas use.

Beijing also plans to increase China's natural gas use through imports and domestic production.

The process of opening data has already helped cut gas use by up to 10% in one Whitehall building.

Energy policy has encouraged natural gas use while discouraging the development of new supplies.

This home service eventually developed into a full advisory service on domestic gas use.

Customers who can switch easily account for nearly a third of the nation's gas use.

New engines are also being developed exclusively for natural gas use.