Not so quiet on the high frontier

In 1997, TREE announced the creation of the International Canopy Crane Network, which would link a set of large construction cranes, erected all over the globe and providing access to a previously poorly known part of terrestrial ecosystems: the forest canopy. What did it all result in? A new booklet published by UNEP summarizes recent findings from the 11 crane sites and draws up visions for future collaboration.