Archangel Ancient Tree Archive is a non-profit group "that locates and propagates the world’s largest and most iconic trees." They combine both traditional and modern methods to clone old trees for reforesting before they become extinct. This way, forests under intense environmental pressure can benefit from the superior genetic makeup of sturdy, ancient trees. The cloned trees come from all over the world and represent the absolute best of the old growth tree population.
Here is the AATA's misson:
Propagate the world’s most important old growth trees before they are gone.
Archive the genetics of ancient trees in living libraries around the world for the future.
Reforest the Earth with the offspring of these trees to provide the myriad of beneficial ecosystem services essential for all life forms to thrive including releasing oxygen, sequestering carbon dioxide, providing beneficial aerosols and medicines, and to fight global warming.
For this year's Earth Day, the non-profit planted redwood trees to turn diminishing forests into thriving ones. The redwoods were distributed and planted in Germany, Ireland, Wales, Great Britain, New Zealand, Australia and the United States (California and Oregon). The purpose of this wide dispersal is to improve the chances of their long-term survival — for instance, if something threatens the new redwood transplants in Wales, there will still be several redwood populations elsewhere.