The scientists issued an ultimatum: "It's either us or the monkey."

The world's leading scientists issued a desperate plea to politicians to act on climate change, amid warnings that without action the world faces decades of social unrest and war.

Even so, Dr. McKay said in an interview yesterday, the scientists issued their finding with some trepidation.

The scientists and technology experts at the conference issued a strong statement highlighting the risk of climate change.

In the past few years, scientists have issued ever more gloomy warnings about global warming.

And yet when scientists issue their warnings in some far-off corner of Congress, does anybody hear them?

The climate had stabilized, although once again scientists were issuing dire warnings, this time of a coming Ice Age.

For example, scientists issued a warning when a high volcano, capped with ice, began rumbling in the mountains of Colombia in 1985.

He recalled one job: "One of our hierarchical martinets decided that all scientists under his command must issue monthly reports detailing their activities for every 15-minute period.

A scientist who helped conduct that study issued a spirited and angry defense.