Sentences with phrase «positive feedback system»

In a study published Monday in the Proceedings of the National Academy of Sciences, Piantadosi and his colleague Celeste Kidd modeled how this evolutionary positive feedback system could have led to runaway natural selection that resulted in absurdly smart humans (but still not smart enough to behave well on the Internet).

The Arctic and Antarctic are where fears about «runaway global warming» and speculation about positive feedback systems are grounded, precisely because these regions are so poorly understood.

Chemicals © 2012 Pearson Education, Inc. 1 - 7 Negative and Positive Feedback Systems Integration Systems work together to maintain homeostasis Homeostasis is a state of equilibrium Opposing forces are in balance Dynamic equilibrium — continual adaptation Physiological systems work /

«These positive feedback systems will take on a momentum of their own that becomes unstoppable.

If you we're to ask scientists if they believe that the earths cliamte exists as a positive feedback system and we will reach a tipping point of no return I doubt you would get 50 % support amongst climatologists and barely 30 % amongst scientists.

The higher CH4 emissions measured from runnel ponds, and their potential to contain organic carbon deposited thousands of years ago qualify them as a positive feedback system contributing to climate dynamics.