However, the war's main impact proved to be social and political.

Indeed, Williams' impact on the field of study has proved of lasting significance.

Whatever the political benefits, however, witnesses and experts say the impact on the campaign's targets is already proving catastrophic.

But the impact in this arena could prove even more enduring than the current problems on Wall Street.

The initial impact of the toxin in the air proved bothersome.

"With the shields at twenty percent, even a small impact could prove disastrous."

Low impact selective harvest proved to be a successful project.

Even if Microsoft's position doesn't change, the impact its rules will have may prove to be negligible in practice.

The impact of this measure on the European market has proven to be enormous, both for importers and producers.

We have all seen the grim estimates of what the longer-term impact could prove to be.