Increased atmospheric carbon dioxide concentrations are expected to cause cooling of the lower stratosphere.

This behaviour is similar to the observed evolution of the mean temperature in the lower stratosphere during 1984 and 1989.

In the tropical lower stratosphere, however, O 3 is reduced by up to 7%.

Yet this part of the lower stratosphere is difficult to monitor.

Note that most of the ozone is in the lower stratosphere.

"Intermission" eventually does slam into the ground - nothing with this many different environments could stay in the lower stratosphere for so long.

But almost all of them will make it to the lower stratosphere.

More complicated mechanisms have been discovered that lead to ozone destruction in the lower stratosphere as well.

These temperatures can occur in the lower stratosphere in polar winter.

Without being able to see the instruments, Richard estimated that they were between seven and eight miles high, in the lower stratosphere.