Less than 10% of the fuel energy burned in automobiles is translated into forward motion of the vehicle and even then most of this energy is needed to move the vehicle itself, which typically weighs 20 times more than its passengers.

The increasing frequency of extreme weather events, droughts and floods is in line with what climate scientists have been predicting for decades - and evidence is mounting that what's happening is more severe than predicted, and will get far worse still if we fail to act.

If we continue to set human borders and the economy as our highest priorities, we will never come to grips with the destructiveness of our activities and institutions.

Conventional economics is a form of brain damage. Economics is so fundamentally disconnected from the real world, it is destructive.

Debating the best way to do something we shouldn't be doing in the first place is a sure way to end up in the wrong place.

Despite the international scientific community's consensus on climate change, a small number of critics continue to deny that climate change exists or that humans are causing it. Widely known as climate change "skeptics" or "deniers," these individuals are generally not climate scientists and do not debate the science with the climate scientists.

Love is the force that makes us fully human.