From the New York Times:

A new international ranking of environmental performance puts the United States at the bottom of the Group of 8 industrialized nations and 39th among the 149 countries on the list.

European nations dominate the top places in the ranking, which evaluates sanitation, greenhouse gas emissions, agricultural policies, air pollution and 20 other measures.

The top 10 countries were led by Switzerland, Sweden, Norway and Finland. The others at the top were Austria, France, Latvia, Costa Rica, Colombia and New Zealand, the leader in the 2006 version of the analysis.