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Earth & Environment

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forest tent caterpillar

Forest tent caterpillars, like this one resting on an aspen leaf, are found in U.S. hardwood forests. A new study finds that when carbon dioxide levels are higher, herbivorous insects eat more vegetation. 

lightning volcano

FIRE BOLT  Lightning that crackles through volcanic ash plumes, such as during this 2010 eruption of Eyjafjallajökull in Iceland, can kiln microscopic glass orbs, new research finds.

El Yunque National Forest, Puerto Rico

More than half of Earth’s land surface has seen major changes in plant growth patterns such as leaf-on date and how much vegetation grows in a season.

Earth & Environment

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