The costs incurred by increasing fire testing made cellulose more expensive and the bad publicity helped decrease demand.

Instead, he believes, there are simply fewer people travelling, owing to widespread redundancies and a decreased demand for global business travel.

Decreased demand amid the global economic downturn plus a glut of gas supplies have undermined the rationale for developing new gas projects.

This decreasing demand could give us time to plan and implement the low-carbon energy economy.

The quantity of the demand varies inversely with the price: a higher price decreases demand.