Perhaps, the worst feedback loop we are stuck in today is the one involving usage of the AC to counter the effects of climate change. As the globe gets warmer, we crank up the A.C to neutralize the effect. This in turn leads to more energy use and even unintended release of HFCs into the atmosphere causing the effects of climate change to grow much worse. To counter this, we boost the AC usage even more! And thus, we lay prisoners to this horrid feedback loop that is slowly eating up our planet.