Any system, biological, economic, or social, that gets so encrusted that it cannot self-evolve, a system that systematically scorns experimentation and wipes out the raw material of innovation, is doomed over the long term on this highly variable planet.

A knowledgeable and courageous U.S. president could help enormously in leading the world's nations toward saving the climate.

You should issue demerits for tree cutting or the destruction of humus.

There are no separate systems. The world is a continuum. Where to draw a boundary around a system depends on the purpose of the discussion.

There have been high crimes and misdemeanors, but they have been committed by the special prosecutor and the Congress, not the president.

A vision should be judged by the clarity of its values, not the clarity of its implementation path [in Mediated Modeling page 43]

Everyone except the far right wing of the Republican Party realizes that oil, gas and coal burning are the main activities that have sent the climate into bigger floods, droughts, hurricanes, and El Ninos