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Spring Comes Earlier to Urban Environments

Spring comes earlier to dense cities, and while that might be great for city gardeners and outdoorsy types, it might be bad for native birds and insects. Writing in the journal Environmental Research Letters, researchers from the University of Wisconsin-Madison say plants in urban areas begin budding earlier in the spring than their suburban counterparts because cities act as “heat islands” due to the amount of concrete and pavement and relative lack of vegetation. According to the...

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