Dwindling water levels of Lake Powell seen from space

After decades of drought, water levels in Lake Powell, the second-largest human-made reservoir in the United States, have shrunk to its lowest level since it was created more than 50 years ago, threatening millions of people ...

Galapagos tortoises are a migrating species

(Phys.org)—The Galapagos giant tortoise, one of the most fascinating species of the Galapagos archipelago, treks slowly and untiringly across the volcanic slopes. Scientists of the Max Planck Institute for Ornithology in ...

Study finds Southern Hemisphere becoming drier

A decline in April-May rainfall over south-east Australia is associated with a southward expansion of the subtropical dry-zone according to research published today in Scientific Reports, a primary research journal from the ...

Asbestos, dry cleaning agent among 10 chemicals under review

Under a congressional mandate, the U.S. Environmental Protection Agency is reviewing 10 chemicals to determine if they pose an unreasonable risk to human health or the environment and should be subject to additional regulation. ...

Mapping the first family tree for tropical forests

More than 100 researchers have collaborated to classify the world's tropical forests according to their evolutionary history, a process that will help researchers predict the resilience or susceptibility of different forests ...

Image: Lake-effect snowfall in the Great Lakes and New York

A powerful winter storm, with lake-effect snow, brought blizzard conditions to New York last week and buried the area surrounding the Great Lakes under a blanket of snow. Days of strong winds, with speeds of over 90 km/h, ...

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