 Is taxing plastic production the best way to control plastic waste? | Plastic Pollution | Dec. 7, 2018 |
| Is further oil drilling good for the Arctic? | Arctic Development | Dec. 2, 2016 |
| Should Obama designate Bears Ears a national monument? | Managing Western Lands | Apr. 22, 2016 |
| Should “inherent safety” be required for chemical plants? | Regulating Toxic Chemicals | Jul. 18, 2014 |
| Should the United States suspend Arctic offshore drilling? | Future of the Arctic | Sep. 20, 2013 |
| Should the United States adopt a carbon tax? | Climate Change | Jun. 14, 2013 |
| Is biodiversity loss reaching a critical stage? | Vanishing Biodiversity | Nov. 6, 2012 |
| Should Congress allow more logging to reduce wildfire threats? | Managing Wildfires | Nov. 2, 2012 |
| Does creating national monuments hurt local economies? | Managing Public Lands | Nov. 4, 2011 |
| Should the EPA limit nutrient pollution in the Mississippi River? | Gulf Coast Restoration | Aug. 26, 2011 |
| Will banning some plastic products reduce plastic pollution? | Plastic Pollution | Jul. 2010 |
| Is the Copenhagen Accord a meaningful step forward in halting climate change? | Climate Change | Feb. 2010 |
| Can "green" jobs revive the U.S. economy? | Confronting Warming | Jan. 9, 2009 |
| Will President-elect Obama's clean energy plan work? | Reducing Your Carbon Footprint | Dec. 5, 2008 |
| Should the European Union cap aviation carbon emissions? | Carbon Trading | Nov. 2008 |
| Should Congress pass the Clean Water Restoration Act? | Protecting Wetlands | Oct. 3, 2008 |
| Does the United States need a national renewable electricity portfolio standard? | Buying Green | Feb. 29, 2008 |
| Is generating energy from waste good for the environment? | Future of Recycling | Dec. 14, 2007 |
| Should religious people care more about mass extinction? | Disappearing Species | Nov. 30, 2007 |
| Should a trade tax be imposed on the U.S. and other countries that don't sign the Kyoto Protocol? | Curbing Climate Change | Feb. 2007 |
| Are businesses better equipped than governments to address 21st-century environmental challenges? | The New Environmentalism | Dec. 1, 2006 |
| Should the U.S. join an international treaty on climate change? | Climate Change | Jan. 27, 2006 |
| Should the government relax emissions rules on older power plants? | Bush and the Environment | Oct. 25, 2002 |
| Should the United States make sure a plant or animal is harmless before allowing it into the country? | Invasive Species | Oct. 5, 2001 |
| Should the federal government buy more land to help conserve open space? | Saving Open Spaces | Nov. 5, 1999 |
| Is it economically viable to look for natural cures in rain forests? | Saving the Rain Forests | Jun. 11, 1999 |
| Can the United States afford to ratify the Kyoto Protocol to curb global warming? | Setting Environmental Priorities | May 21, 1999 |
| Would more bipartisanship lead to better government? | Partisan Politics | Mar. 19, 1999 |
| Should road building in the national forests be halted temporarily? | National Forests | Oct. 16, 1998 |
| Would constructing a low-level radioactive nuclear-waste dump near Sierra Blanca, Texas, constitute 'environmental injustice'? | Environmental Justice | Jun. 19, 1998 |
| Should Congress repeal a superfund provision that can hold a company responsible for cleanup of hazardous waste dumped legally before superfund was enacted in 1980? | Cleaning Up Hazardous Wastes | Aug. 23, 1996 |
| Would a proposed law requiring that federal regulations be subjected to rigorous risk-assessment and cost-benefit analysis impede environmental protection? | Environmental Movement at 25 | Mar. 31, 1995 |
| Should the federal government launch a nationwide lead-abatement program? | Lead Poisoning | Jun. 19, 1992 |
| Can the northern spotted owl's ancient forest habitat be saved without causing wide spread unemployment in the pacific northwest? | Jobs Vs. Environment | May 15, 1992 |
| Is $1 billion sufficient payment for the Exxon Corp.'s role in the Exxon Valdez oil spill? | Oil Spills | Jan. 17, 1992 |
| Is “prudent avoidance” of electromagnetic fields a good strategy for people to follow? | Electromagnetic Fields: Are They Dangerous? | Apr. 26, 1991 |
| Should reliance on nuclear power be increased to meet energy needs and to protect the environment? | Setting Environmental Priorities | Dec. 9, 1988 |
