beschra writes "BBC writes of 'terra-forming' Ascension Island, one of the islands Charles Darwin visited. He and a friend encouraged the Royal Navy to import boatloads of trees and plants in an attempt to capture the little bit of water that fell on the island. They were quite successful. The island even has a cloud forest now. From the article: '[British ecologist] Wilkinson thinks that the principles that emerge from that experiment could be used to transform future colonies on Mars. In other words, rather than trying to improve an environment by force, the best approach might be to work with life to help it "find its own way."'"