Mars swallowed its water in another turn of its long, vicious weather cycle.

And my colony has entered its low weather cycle, more clouds, lower temperatures.

I think this weather cycle is going to require an ongoing awareness of conservation.

The Met Service, which should have been beating the drum and sounding the alarm about the upcoming weather cycles, was also in a bind.

Project Mercy began experimenting with drip irrigation within its own gardens to manage the effects of the weather cycles.

For most of our history, we were trapped by the seasonal cycles, the weather cycles.

Survivors faced local predators and weird weather cycles.

"This weird weather cycle the last few years," said the wire editor.

Evaporation of water ran the weather cycle, but oil was the important surface fluid.

The builders relied upon a built-in weather cycle.