Environment

OBAMA_4076_20121024

The Marine One helicopter, with President Obama aboard, lifts Oct. 23, 2012, from the South Lawn of the White House in Washington, Wednesday, en route to Andrews Air Force Base, Md., then onto campaign events in Iowa, Colorado, California and Nevada. (Associated Press)

OBAMA_4075_20121024

President Obama walks from the White House to Marine One on Oct. 24, 2012, en route to Andrews Air Force Base, Md., then onto campaign events in Iowa, Colorado, California and Nevada. (Associated Press)

US BORDER_WEB_20121024_0002

**FILE** A Guatemalan river-raft worker steers a group of Central American migrants journeying north to the U.S., across the Suchiate river on a makeshift raft at the Guatemala-Mexico border crossing in Tecun Uman, Guatemala, on Sept. 28, 2012. (Associated Press)

FORD_4052_20121024

Workers at the Ford plant in Genk, Belgium, react on Wednesday, Oct. 24, 2012, after the European Ford management announced it will close the plant at the end of 2014 — a move that will result in 4,500 direct job losses and 5,000 more among subcontractors. (Associated Press)

FORD_4051_20121024

Workers at the Ford plant in Genk, Belgium, react on Wednesday, Oct. 24, 2012, after the European Ford management announced it would close the plant at the end of 2014 — a move that will result in 4,500 direct job losses and 5,000 more among subcontractors. (Associated Press)

FORD_4050_20121024

Workers at the Ford plant in Genk, Belgium, react on Wednesday, Oct. 24, 2012, after the European Ford management announced it will close the plant at the end of 2014 — a move that will result in 4,500 direct job losses and 5,000 more among subcontractors. (Associated Press)

FORD_4049_20121024

Workers embrace at the Ford plant in Genk, Belgium, on Wednesday, Oct. 24, 2012, after the European Ford management announced it will close the plant at the end of 2014 — a move that will result in 4,500 direct job losses and 5,000 more among subcontractors. (Associated Press)

FORD_4048_20121024

Workers at the Ford plant in Genk, Belgium, react on Wednesday, Oct. 24, 2012, after the European Ford management announced it will close the plant at the end of 2014 — a move that will result in 4,500 direct job losses and 5,000 more among subcontractors. (Associated Press)

FORD_4047_20121024

Workers at the Ford plant in Genk, Belgium, react on Wednesday, Oct. 24, 2012, after the European Ford management announced it will close the plant at the end of 2014 — a move that will result in 4,500 direct job losses and 5,000 more among subcontractors. (Associated Press)

FORD_4046_20121024

A worker (center) at the Ford plant in Genk, Belgium, smashes a plaque containing the company's mission statement with a shovel while another worker looks on, on Wednesday, Oct. 24, 2012, in front of the factory. The European Ford management announced it will close the plant at the end of 2014 — a move that will result in 4,500 direct job losses and 5,000 more among subcontractors. (Associated Press)

FORD_4045_20121024

A worker at the Ford plant in Genk, Belgium, reacts on Wednesday, Oct. 24, 2012, after the European Ford management announced it will close the plant at the end of 2014 — a move that will result in 4,500 direct job losses and 5,000 more among subcontractors. (Associated Press)

FORD_4043_20121024

A worker at the Ford plant in Genk, Belgium, reacts on Wednesday, Oct. 24, 2012, after the European Ford management announced it would close the plant at the end of 2014 — a move that will result in 4,500 direct job losses and 5,000 more among subcontractors. (Associated Press)

CAMPAIGN_TRAIL102339.JPG

President Barack Obama walks across the South Lawn to the White House from Marine One, Tuesday, Oct. 23, 2012, in Washington. (AP Photo/Carolyn Kaster)

US Oil Boom_Live.jpg

**FILE** A pumping unit sucks oil from the ground near Greensburg, Kan., on March 6, 2012. (Associated Press)

BEIRUT_WEB_20121023_0007

Workers gather to remove broken glass and debris at a clothing shop damaged in a car bomb attack that killed Brig. Gen. Wissam al-Hassan in the Achrafieh district of Beirut on Oct. 23, 2012. (Associated Press)

BEIRUT_WEB_20121023_0002

** FILE ** Black smoke rises from a burning house in the northern port city of Tripoli, Lebanon, Oct. 22, 2012. (Associated Press)

20121022-205742-pic-48495887.jpg

Going into Monday night’s third and final presidential debate, Republican presidential challenger Mitt Romney and President Obama had not been asked about several issues that whoever wins the presidency will face. Advocates are concerned that climate change, gay rights and Supreme Court nominations have not been addressed. (Associated Press)