The U.S. Chamber of Commerce continues to rack up bad press because of its knee-jerk opposition to climate change legislation. (If you want the whole sordid history, read our earlier post.)

The latest news: Nike announced Wednesday that it is resigning its position on the Chamber's board.

It's not dropping its membership in the Chamber altogether — at least, not yet. But Nike's statement suggests a long and happy future together may not be in the cards.

The statement begins with:

Nike believes US businesses must advocate for aggressive climate change legislation …

It continues ..

…we fundamentally disagree with the US Chamber of Commerce…

and it ends rather ominously:

Moving forward we will continue to evaluate our membership

Nike's statement does make clear that, for now, they believe they'll be better advocates for climate change legislation by working within the Chamber. But if the Chamber continues to push its extreme and inflexible views, Nike could become the fourth big company to walk away from the group — following in the fleeing footsteps of Exelon, Pacific Gas & Electric, and PNM Resources.

A fifth company, Johnson&Johnson, also supports climate change legislation and has publicly expressed its displeasure with the Chamber's stance the issue. The company hasn't taken any steps away from the Chamber… yet.

The New York Times has more on the story of Nike's resignation.