Public Perception of Environmental Risks and Hazards
A quantifiable look at American concerns over the Environment (1989-2014)
Dates
1989
1990
1991
1999
2000
2001
2002
2003
2004
2006
2007
2008
2009
2010
2011
2012
2013
2014
The Key
"I worry about this problem a great deal"
"I somewhat worry about this problem"
"I barely worry about this problem"
"I do not worry about this problem at all"
Pollution of rivers, lakes, and reservoirs
Air pollution
Loss of tropical rain forest
Global warming
Contamination of soil and water
by toxic waste
Pollution of drinking water
1989
Carbon dioxide in Earth's atmosphere reaches 350 ppm.
Montreal Ozone Layer Protocol comes into effect.
Exxon Valdez oil spill
Golden Toad classed as extinct.
Langkawi Declaration on the Environment