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Share This A new study, published this week in Proceedings of the National Academy of Sciences, reveals that nitrogen-fixing trees play an underrecognized role in recovering tropical forests by enriching nutrient-poor soils with scarce elements such as phosphorus and molybdenum. A new study, published this week in Proceedings of the National Academy of Sciences, reveals that nitrogen-fixing trees play an underrecognized role in recovering tropical forests by enriching nutrient-poor soils with scarce elements such as phosphorus and molybdenum. Coauthor Sarah Batterman, a tropical forest ecolog...

 E-Mail IMAGE: Tropical forests in Panama are threatened due to agriculture, mining, development, and climate change. Reforestation is an important strategy to protect the tropical carbon sink. Nitrogen-fixing trees are known to... view more  Credit: Credit: Sarah Batterman. A new study, published this week in Proceedings of the National Academy of Sciences, reveals that nitrogen-fixing trees play an underrecognized role in recovering tropical forests by enriching nutrient-poor soils with scarce elements such as phosphorus and molybdenum. Coauthor Sarah Batterman, a tropical fores...

Animal diseases intensified by climate change From Bluetongue disease in sheep to Rift Valley Fever in camels, researchers say that animal diseases are sparked and spread by climate change. What causes them, and what can people do to prevent them from spreading? Bluetongue is transmitted by a tiny biting midge, Cullicoides immitus, similar to the way that malaria is spread by mosquitoes. Sheep with swollen, bright blue tongues: it is a surreal sight only recently spotted in Germany. Aptly dubbed Bluetongue, the deadly disease causing the coloration was previously well known in veterinary me...

 E-Mail As COVID-19 sweeps the world, related viruses quietly circulate among wild animals. A new study shows how SARS-CoV-2, the virus that causes COVID-19, and SARS-CoV-1, which caused the 2003 SARS outbreak, are related to each other. The work, published recently in the journal Virus Evolution, helps scientists better understand the evolution of these viruses, how they acquired the ability to infect humans and which other viruses may be poised for human spillover. "How did these viruses come to be what they are today? Why do some of them have the ability to infect humans while others do ...

Yellow fever was the first human disease to have a licensed vaccine and has long been considered important to an understanding of how epidemics happen and should be combated.