Is environmentalism dead, or did someone cherry-pick a poll result that is likely to be an artifact of question wording? Some other polls:

(from www.pollingreport.com)

(GALLUP, March 2005)
Do you think the U.S. government is doing too much, too little, or about the right amount in terms of protecting the environment?" Form B (N=510, MoE ± 5)

Too Much 5%
Too Little 58%
About Right 34%

The Gallup Poll. March 8-11, 2004.
"With which one of these statements about the environment and the economy do you most agree? Protection of the environment should be given priority, even at the risk of curbing economic growth. OR, Economic growth should be given priority, even if the environment suffers to some extent." Options rotated

Environment 49%
Economic Growth 44%
Equal Priority 4%

Who do you tend to believe: scientists who claim that the Bush Administration is ignoring and distorting scientific evidence about environmental problems, OR, the Bush Administration, which denies ignoring and distorting scientific evidence about environmental problems?"

Scientists 59%
Bush Administration 32%
No Opinion 9%
.

CBS News/New York Times Poll. Nov. 20-24, 2002. N=996 adults nationwide. MoE ± 3 (total sample).

"Do you agree or disagree with the following statement? Protecting the environment is so important that requirements and standards cannot be too high and continuing environmental improvements must be made regardless of the cost."

Agree: 57%
Disagree: 36%
Don't know: 7%

The Gallup Poll. April 3-9, 2000. N=1,004 adults nationwide. MoE ± 3.
.

"All things considered, do you think the environmental movement in this nation has done more good than harm, or more harm than good? Would you say it has done [rotate] definitely more good than harm, probably more good than harm, probably more harm than good, or definitely more harm than good?"

Definitely more good than harm: 33%
Probably more harm than good: 42%
Probably more harm than good: 12%
Definitely more harm than good: 9%