Environment

henri_1051

Water-filled bomb craters from B-52 strikes against the Viet Cong mark the rice paddies and orchards west of Saigon, Vietnam, 1966. Most of the area has been abandoned by the peasants who used to farm on the land. (AP Photo/Henri Huet)

henri_1041

American infantrymen crowd into a mud-filled bomb crater and look up at tall jungle trees seeking out Viet Cong snipers firing at them during a battle in Phuoc Vinh, north-Northeast of Saigon in Vietnam's War Zone D, June 15, 1967. (AP Photo/Henri Huet)

belgium_999

Children are evacuated from school due to flooding in Geraardsbergen, 25 miles south west of Brussels, Belgium, Friday Jan.14, 2011. Heavy rainfall is threatening flooding all over the country. (AP Photo/Yves Logghe)

belgium_998

The Dender river breaks its banks as it floods parts of Geraardsbergen, 25 miles south west of Brussels, Belgium, Friday Jan. 14, 2011. Heavy rainfall is threatening flooding all over the country. (AP Photo/Yves Logghe)

belgium_997

Residents watch from their front door as an extractor pump removes flood water from a house, in a flooded street in Geraardsbergen, 25 miles south west of Brussels, Belgium, Friday Jan.14, 2011. Heavy rainfall is threatening flooding all over the country. (AP Photo/Yves Logghe)

belgium_996

A car is submerged by water in a flooded street in Deux-Acren, 32 miles south west of Brussels, Belgium, Friday Jan.14, 2011. Heavy rainfall is threatening flooding all over the country. (AP Photo/Yves Logghe)

belgium_994

A road block is set up at a flooded street in Deux-Acren, 32 miles south west of Brussels, Belgium, Friday Jan.14, 2011. Heavy rainfall is threatening flooding all over the country. (AP Photo/Yves Logghe)

belgium_1002

A firefighter talks with residents in a flooded street in Geraardsbergen, 25 miles south west of Brussels, Belgium, Friday Jan.14, 2011, as an extractor pump sprays water from the sandbagged area, protecting houses, back into the river, foreground. Heavy rainfall is threatening flooding all over the country. (AP Photo/Yves Logghe)

belgium_1001

The road is flooded at a junction near Deux-Acren, 32 miles south west of Brussels, Belgium, Friday Jan.14, 2011. Heavy rainfall is threatening flooding all over the country. (AP Photo/Yves Logghe)

APTOPIX Brazil Floodi_Thir.jpg

People bury victims of a landslide in Teresopolis, Rio de Janeiro state, Brazil, Thursday Jan. 13, 2011. More than 500 people died in Rio state towns after slides hit early Wednesday, officials said. (AP Photo/Felipe Dana)

20110113-202012-pic-876774605.jpg

Haitian police lower the national flag Wednesday in front of the still-damaged presidential palace on the first anniversary of the magnitude-7.0 earthquake in Port-au-Prince. The poverty-stricken country also has presidential election problems. (Associated Press)

20110113-201904-pic-104913644.jpg

Homes affected by landslides in the Nova Friburgo municipality of Rio de Janeiro state in Brazil are seen on Thursday in this photo released by Rio de Janeiro's state government. At least 355 people died in Rio state towns after slides hit early Wednesday, and at least 50 people were still missing, officials said. (Associated Press)

20110113-185856-pic-570005394.jpg

The hardware for an IBM computer called "Watson" is seen after a practice round of the "Jeopardy!" The size of 10 refrigerators, "Watson" bested its human rivals. (Associated Press)