Table 7-7
Environmental concerns of American public: Selected years, 1997–2004
(Percent)
 
Issue 1997 1999 2000 2001 2002 2003 2004
Pollution of drinking water NA 68 72 64 57 54 53
Pollution of rivers, lakes, and reservoirs NA 61 66 58 53 51 48
Contamination of soil and water by toxic waste NA 63 64 58 53 51 48
Maintenance of nation's supply of fresh water for household needs NA NA 42 35 50 49 47
Air pollution 42 52 59 48 45 42 39
Damage to Earth's ozone layer 33 44 49 47 38 35 33
Loss of tropical rain forests NA 49 51 44 38 39 35
Extinction of plant and animal species NA NA 45 43 35 34 36
Greenhouse effect or global warming 24 34 40 33 29 28 26
Acid rain NA 29 34 28 25 24 20
 

NA = not available

NOTE: Data reflect respondents who said they worry a great deal about issue.

SOURCE: L. Saad, Global warming on public's back burner, Gallup Poll News Service (20 April 2004), http://www.gallup.com/poll/content/?ci=11398&pg=1.

 
Science and Engineering Indicators 2006