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By Julia Roeder  While health officials urge people to stay indoors due to the smoke draping the Midwest, experts say we should remember that the same polluted air affecting humans also threatens animals.



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By Anna Barnes  In Michigan, sugar maple populations are rising and eastern redbud trees are making their way north, while coniferous trees, like the black spruce, continue to decline. One suspected cause: climate warming.



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By Riley Wilson Ice covering the Great Lakes stores organic carbon, which is released in a burst during spring melt. As climate change reduces ice cover, researchers say this seasonal surge of energy may be shrinking, with uncertain consequences for these freshwater systems.