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"TACLOBAN, Philippines -- The typhoon that recently barreled through the Philippines has left in its wake one of the most profound resettlement crises in decades, with the number of newly homeless far exceeding the capacity of aid groups and the government to respond."

"LAKE MEAD, Nev. -- The sinuous Colorado River and its slew of man-made reservoirs from the Rockies to southern Arizona are being sapped by 14 years of drought nearly unrivaled in 1,250 years."

"WASHINGTON -- Five years before a train loaded with crude oil derailed and exploded last year in Quebec, killing 47 people, another derailment in Oklahoma should have given federal regulators an early warning that the type of oil both trains carried was more flammable than authorities realized."

"Federal regulators are unlikely to step up enforcement of potential water contamination cases linked to natural gas drilling -- despite new concerns about water safety -- given a lack of political will and limited resources to pursue such cases, analysts said."

"Associated Press review of complaints casts doubt on industry view that it rarely happens."

"CHICAGO -- Snow-covered roads, high winds and ice were creating dangerous driving conditions Sunday from the Dakotas to Missouri to Delaware ahead of a 'polar vortex' that'll bring below-zero temperatures not seen in years to much of the nation."

Malaria is still a major killer in the developing world. Eliminating malaria may be less about nets and medicines than about draining the wetlands that breed mosquitoes, as was the case in the American South.

"Bill Williams, the president of the company that wants to open a $1.5 billion iron ore mine in northern Wisconsin, is being charged with contaminating an emergency water supply at a mine in Spain."

"Three coal-fired generators that opened in the 1960s near Farmington, N.M., closed Monday as part of a $182 million plan for Arizona Public Service Co. to meet environmental regulations, the utility reported."