It is clear that there are far cheaper fuels -- efficiency, solar and wind to replace coal and natural gas in the U.S., and biofuels or electricity elsewhere to reduce oil intensity. So how much $100 fossil fuel can the world afford, climate aside?

This is an image that shows the cumulative increase or decrease in the amount of water on each part of the earth's surface from 2003-2009.

Ultimately we need all companies, not just the leaders, to make sustainability part of their corporate fabric. That will require changing the rules of the game.

Some would have us believe that we cannot afford clean air regulations. That is just not true. In fact, these regulations provide opportunities for well-paying American jobs.

In the sense that businesses need to consider the risks and opportunities inherent in managing natural resource pressures, they represent similar challenges. But we see a few differences between the two.

Earlier this week at the Clinton Global Initiative, UN climate chief Christiana Figueres offered her assessment of what was preventing progress in the...

If you looked merely at the realm of politics, it would be easy to believe that the question "Is climate change really happening?" is still unresolved...

Unlike most corporations trying--just now--to hitch a free ride on the "green bandwagon," The Timberland Company maintains a long history of environmental stewardship that began by partnering with the Coalition for Environmentally Responsible Economies (CERES) in 1993.

If Ceres Climate Change ratings had been used as a proxy for long-term thinking, they would have been helpful. They would, in the context of the illiquidity of the credit markets, have been a good predictor of the Bankers Panic of 2008.