Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Leaves are food factories for the tree. Powered by sunlight, the green ...

Climate warming is linked to a widening interval between leaf unfolding and flowering in European trees, with implications for tree fitness and the wider environment, according to new research. An ...

Researchers in New Zealand say they've identified extensive changes in the growth patterns and timing of the planet's tree leaf activity in the last few decades. Their findings, a first global ...