Artificial light is upending trees’ ability to use the natural day-night cycle as a signal of seasonal change.
Climate change is modifying the timing of recurrent life-cycle events with critical consequences on ecological and economic levels.
Warm autumn weather has produced dull leaf colors across the eastern US this year, but climate change isn’t the only way that humans have altered trees’ fall displays.
Warmer temperatures cannot increase the amount of carbon deciduous trees absorb in each growing season, a new study suggests.
Many deciduous trees put on a dazzling fall foliage display. But coniferous evergreens hold on to their needles and stay green. A biologist breaks down these different survival strategies.
Monitoring the timing of recurring biological events is key to understanding the effects of climate change.
Record-breaking summer heat might mean trees delay and mute their autumn hues.