Biogeochemical insights from a major Amazonian river

Rivers provide water to billions of people and are critical linkages between continental ecosystems and oceans. Every run and every riffle reshape the surrounding landscape as a river transports nutrients and sediment downstream. ...

Mars once had wet-dry climate conducive to supporting life: Study

NASA's Curiosity rover has discovered the first evidence that Mars once had a climate which alternated between wet and dry seasons similar to Earth, a study said on Wednesday, suggesting the red planet may have once had the ...

African smoke over the Amazon

The Brazilian rainforest is one of the world's few continental regions with clean air. However, this is only true during the wet season, when the concentration of particulate matter is very low. During the dry season, it's ...

How cattle ranchers in Brazil cope with weather shocks

Agricultural producers around the world must adapt to changing weather patterns. Much research has focused on mitigation strategies for crop production, but livestock producers face unique challenges.

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