NericAcosta2010.com

Some may still quibble with the assertion, as formulated the other day by a former environment secretary, that the marked rise in temperature in the last decade is “caused entirely by human actions.” But unless you are Sarah Palin, there should be no argument that global warming is a fact and human beings are responsible for much or most of it.

The inconvenient truth is the world is rushing toward an ecologically unstable — and therefore economically uncertain — future.