Trees absorb the gas as they grow, and the new forests would be cut down and replanted in a continuous cycle.

She grimaces at the routine followed by so many of focusing totally on the sport and living a continuous cycle of airports, hotel rooms, practice courts and self-analysis.

The last scene shows the steward explaining the rules to the next set of strangers, implying a continuous cycle.

The two gates in the temple are believed to represent the continuous cycle of entering into life and getting out of it.

Also, the center argues that prizes do not create incentives to drive continuous cycle of advances and improvements because prizes are finite and limited.