Excess nitrogen puts butterflies at risk

Nitrogen from agriculture, vehicle emissions and industry is endangering butterflies in Switzerland. The element is deposited in the soil via the air and has an impact on vegetation—to the detriment of the butterflies, ...

Average-sized 'dead zone' forecast for Gulf of Mexico

A team of scientists including a University of Michigan aquatic ecologist is forecasting this summer's Gulf of Mexico hypoxic area or "dead zone," an area of low to no oxygen that can kill fish and other marine life, to be ...

'Slow slip' earthquakes' hidden mechanics revealed

Slow slip earthquakes, a type of slow motion tremor, have been detected at many of the world's earthquake hotspots, including those found around the Pacific Ring of Fire, but it is unclear how they are connected to the damaging ...

A closer look at the creation of a metamorphic sole

When two of Earth's tectonic plates collide, the heavier plate is forced underneath and back into the mantle in a process called subduction. During the early stages of newly initiated subduction zones, the uppermost part ...

Land can retain about a quarter of monthly precipitation

To support growing human and animal life, freshwater sources must continuously supply water. Freshwater from lakes, rivers, and underground is mainly recharged by rainfall. Ground reservoirs can store rainwater over time, ...

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