A study from Wisconsin found that nearly 60% of the annual phosphorous in urban water systems is from these falling leaves, ...

Autumn is rapidly approaching ... been arriving later across Europe since the 1980s, and in Britain oak leaves are falling a week later than 30 years ago. Fall is not an exclusively US term.

Every year people ask me, "why haven't the leaves fallen yet ... The first of these starts in early autumn and is linked to a chemical produced by the buds called auxin, which slows the tree's ...