Summer and fall heat may delay the timing of autumn foliage

We’re entering the most beautiful time of year—autumn—when temperate and boreal forests change from vibrant green to dozens of hues of yellow, orange, and red. Have you ever wondered what affects the timing of autumn leaf change? A recent study suggests that warmer than average summer and fall temperatures may delay the timing of leaf change in European beech trees, and while temperature may be the driving factor, how temperature differences may interact with other conditions (like drought) in the future is still unclear.

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