A pattern of warming weather in the Arctic today, he warned, will make engineering the current proposal difficult and costly.

With the deficit looming, lawmakers said that costly proposals would have little chance of surviving.

Much of the plan, including its most costly proposals, would require state approval.

Unlike the controversial and costly proposals for prescription drug coverage, this would not raise the cost of Medicare.

Other costly new proposals include a reform of the flawed farm support program, the president's energy plan and assistance to those without health insurance.

One costly proposal before Congress calls for the industry to supply a free annual credit report to consumers.

Grand and costly proposals have been advanced to address the crisis.

Mr. Bush's agenda includes costly proposals important to his party's right wing, like a buildup in military spending and the development of a missile defense.

The Commission has put forward a costly proposal for a satellite monitoring system.

But let us make the less costly proposal first, not admitting we have any communication with you, and hold this bargaining counter in reserve.