"As Brazil struggles to solve land disputes between Indians and farmers on the expanding frontier of its agricultural heartland, more tensions over forest and mineral resources are brewing in the remote Amazon."

"In the Brazilian state of Pará, an army of 25,000 workers is building the world’s third largest hydroelectric plant, a controversial construction project –because of the dam’s low efficiency, its environmental impact and its effects."

"HUARAZ, Peru -- In its heyday, the Pastoruri glacier in central Peru, drew daily throngs of tourists packed into dozens of double-decker buses 16,000-feet (5,0000-meters) high into the Andes to ski, build snowmen and scale its dizzying peaks."

"The Amazon rain forest's dry season lasts three weeks longer than it did 30 years ago, and the likely culprit is global warming, a new study finds."

"BASAVILBASO, Argentina -- Argentine farmworker Fabian Tomasi was never trained to handle pesticides. His job was to keep the crop-dusters flying by filling their tanks as quickly as possible, although it often meant getting drenched in poison."

"The Peruvian anchovy is the world's most heavily exploited fish. Now Peru's government is trying to reduce overfishing of the popular little forager."

"Oil analysts don't expect sudden changes in Venezuela oil policies after Hugo Chavez's death. But political change in post-Chavez Venezuela could open its oil industry to much wider foreign investment."

"Hospitals are on red alert and parts of Buenos Aires have been evacuated as a toxic cloud descends upon the city."

"A species of giant tortoises from the Galapagos Islands could be brought back from extinction despite the death earlier this year of the famed 'Lonesome George,' a tourist magnet and conservation icon who was the last of his kind."