But uncertainty remains even about the date for that phase to begin.

But Afghanistan remains a source of significant uncertainty and high anxiety in an already unstable region.

Of course, a degree of scientific uncertainty about some of these pollutants precise contribution to warming remains.

Yet considerable uncertainty remains about the magnitude of the impact of rising levels of atmospheric greenhouse gases on temperatures and climate. This uncertainty must be taken seriously when formulating strategies to combat climate change.

Yet considerable uncertainty remains about the magnitude of the impact of rising levels of atmospheric greenhouse gases on temperatures and climate.

We stand at a time of uncertainty as to how the global order will unfold, but the path we must choose remains clear.

Uncertainty.

Economic growth is expected to moderate in 2005 in all three countries if the external environment weakens and uncertainty remains about the sustainability of domestic demand.

This heightens uncertainty.

The uncertainty values have been grouped into five sets of uncertainty bands, with corresponding conservativeness factors, by assigning a given uncertainty values to a given band.

The uncertainty values have been grouped into five sets of uncertainty bands, with corresponding conservativeness factors, by assigning a given uncertainty value to a given band.

Arab States of Uncertainty

Uncertainty Shifts to China

The uncertainty values were then mapped into the appropriate uncertainty band, to yield a conservativeness factor.

NEW YORK Afghanistan s security and political situation remains plagued by uncertainty, stemming from the withdrawal of United States and NATO combat troops, the upcoming presidential election, and the stalled peace negotiations with the Taliban.

Play is one of the only human endeavors where uncertainty is actually celebrated. Uncertainty is what makes play fun.

Shifting geopolitical power also breeds uncertainty.

We ought to reduce the uncertainty.

While proponents argue that investment treaties reduce uncertainty, the ambiguities and conflicting interpretations of these agreements provisions have increased uncertainty.

MILAN The world s two largest economies, the United States and China, seem to be enduring secular slowdowns. But there remains considerable uncertainty about their growth trajectory, with significant implications for asset prices, risk, and economic policy.

Here is the moment of strategic uncertainty.

Amidst so much uncertainty, anything is possible.

In monkeys, the level of dopaminergic activity is highly correlated with the level of uncertainty such that the activity increases with uncertainty.

Indeed, businesses cite uncertainty about the strength of demand, not uncertainty about regulation or taxation, as the main factor holding back job creation.

As a consequence, the issue remains part of the residue of uncertainty with respect to the continued existence in Iraq of seed stocks that could possibly be used in the future for the production of biological warfare agents.

In the face of such uncertainty, markets froze.

Uncertainty is a reality, and judgment is required.

Political polarization has become another source of uncertainty.

Lebanon has since been beset by political uncertainty.

Another complexity is uncertainty over who will rule Russia.

But, of course, we cannot overcome long run uncertainty.

1. massive uncertainty about the size of the losses.

Imposing controls also spawns uncertainty about a country s policies.

Critics of the Stern Review don t think serious action to limit CO2 emissions is justified, because there remains substantial uncertainty about the extent of the costs of global climate change, and because these costs will be incurred far in the future.

The year ahead will be challenging and rife with uncertainty.

The only uncertainty is how much warmer that will be.

The abolition of uncertainty abolishes the need for moral rules.

Uncertainty about jobs breeds anxiety, and anxiety stokes protectionist sentiments.

The first two sources of uncertainty have already affected markets.

They are lost in a limbo of uncertainty and disappointment.

Uncertainty ensures that even optimal policies will lead to mistakes.

In the meantime, Chávez is striving to minimize the uncertainty.

Security challenges continue to create worldwide havoc, fear and uncertainty.

Such a regime would be a source of legal uncertainty.

We acknowledged the widespread fear and uncertainty generated by terrorism.