Such madness is no longer sustainable.

The losses of £25,000 per year were no longer sustainable, and the minister promised that the money saved would be used to improve the regions roads.

Nationwide's already critical cash-flow meant operations were no longer sustainable without external, third party finance.

The French government has ruled that the brown bear population in the Pyrenees is no longer sustainable.

But by now that question is largely academic: the European vision of multiculturalism, in all its simultaneous good will and self-congratulation, is no longer sustainable.

By 1973 this was no longer sustainable.

Paul stated, "The years of training have taken a toll on my body and training at an Olympic level is no longer sustainable."

The situation is no longer sustainable.

The one we have at present is unworkable, unfair, lacking in transparency and is no longer sustainable.

Conde Nast closed the magazine last week, announcing that its circulation of less than 550,000 was no longer sustainable.