Nine people were missing Tuesday after a mudslide in northern Argentina that prompted the evacuation of more than 700 people, officials said. The disaster occurred Monday in the town of Tartagal, close to the border with Bolivia.
South Brazil authorities fear that the yellow fever outbreak reported along the Paraguayan and Argentine border could spread to the state of Rio Grande do Sul and are taking special precautions.
Jennifer Figge pressed her toes into the Caribbean sand, exhilarated and exhausted as she touched land this week for the first time in almost a month.
Forecasters have warned of very low temperatures overnight, after snow brought a fifth day of chaos to the UK. Road, rail and air transport was again badly affected, while hundreds of schools were again closed.
The discovery of fossilised remains belonging to the world's largest snake has been reported in Nature journal. Titanoboa was 13 meters long - about the length of a bus - and lived in the rainforest of north-east Colombia 58-60 million years ago.
Bolivia's Public Health Minister Ramiro Tapia admitted Wednesday that the mosquito transmitted dengue epidemics which has extended to the whole territory is out of control and said a total 8.152 cases had been reported of which 7 deaths.
Five people, including two children, died and at least 47 others have been injured in the storm that is battering central Argentina, which was recently hit by the worst drought in the past 50 years, officials said Tuesday.
The world's marine ecosystems risk being severely damaged by ocean acidification unless there are dramatic cuts in CO2 emissions, warn scientists. More than 150 top marine researchers have voiced their concerns through the Monaco Declaration, which warns that changes in acidity are accelerating.
Mexico made a first shipment of sterile parasitic flies to Uruguay to help combat the cattle screw worm or Cochliomyia hominivorax, an insect whose larvae or maggots eat living tissue, and which has gradually spread from Brazil to the southern pastures of South America.
Plans to curb climate change by using plankton to draw carbon dioxide into the world's oceans have been boosted.