It has been said that the greenest buildings are the ones that already exist. Adapting historic buildings for modern uses can create new community beacons that help achieve smart growth. Adaptive reuse can allow a project to significantly reduce its embodied carbon as well as the volume of materials sent to landfill through construction. Reuse also preserves authentic qualities of the built environment that provide a tangible link with the past.
Dendrochronology or tree-ring dating is the scientific method of dating tree rings also called growth rings to the exact year they were formed. As well as dating them this can give data for dendroclimatology , the study of climate and atmospheric conditions during different periods in history from wood. Dendrochronology is useful for determining the precise age of samples, especially those that are too recent for radiocarbon dating , which always produces a range rather than an exact date. However, for a precise date of the death of the tree a full sample to the edge is needed, which most trimmed timber will not provide.