These leaves are delicate and vulnerable to winter winds, frost and snow. In autumn, the leaves turn beautiful shades of red, orange and yellow before they drop off the trees. Common deciduous trees are the oak, elm and beech. Others are maple, lime and chestnut. In much of the northern hemisphere, most of the natural broadleaved forests have been cut down to provide farmlands.
Forests survive only in small patches, or on mountains.
The only large areas of forest left are the coniferous forests of northern Scandinavia, Siberia, the north western United States, Canada and Alaska. Even here, there are few areas of forest left that are in their natural state.