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Analysis and Comment

Dam collapse at Brazilian mine exposes grave safety problems

Nearly 1,800 Brazilian dams are at risk of failure, according to the government. Fixing them is expensive – but ignoring aging dams can have considerable social, economic and environmental costs.

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Animal science

Scientists are raising Miami blue butterflies in captivity and reintroducing them in south Florida. Jeff Gage/Florida Museum of Natural History

Live cargo: How scientists pack butterflies, frogs and sea turtles for safe travels

How do you pack butterflies for shipping, or frogs for an overland hike to a new habitat? Three scientists explain how they keep threatened species safe on the road and in the air.

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Politics and the environment

Oil refiners are fined for exceeding air pollution limits when rules are enforced. AP Photo/David J. Phillip

The EPA has backed off enforcement under Trump – here are the numbers

Data gathered from EPA reports, staffers and retirees show the Trump administration has brought fewer environmental enforcement actions to conclusion and deferred more to states.

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Research and Expert Database

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