In the past we used to have regular 10-year climatic cycles which were always followed by a major drought.

The forests of Central Africa go through long cycles of expansion and reduction, linked with long-term climatic cycles.

With intensifying industrialisation, human society started to stress the natural climatic cycles with increased greenhouse gas emissions.

Our world's climate had been altered, and the glaciers were inexorably on the march, faster and farther than they could ever have done in the normal course of climatic cycles.

Evaluation on geologically short time scales (10-10 a) can reveal much about the relatively shorter climatic cycles, local to regional erosion, and how they could drive terrace development.

In the most recent climatic cycle, the coldest point in the Northern Hemisphere came about 18,000 years ago, after which the climate rapidly warmed.

Investigation of environmental changes in the Eurasian Arctic over the past 250,000 years, i.e., the last two climatic cycles.

Man is changing the atmosphere and the climatic cycles that have shaped human life since the dawn of civilization.

At times, during some part of Gaea's thirty-year climatic cycle, it thawed, and a narrow valley in central Thea experienced a brief, bleak springtime.

The climatic cycle can thus be divided into four seasons as: