Mention the term "geoengineering" and you could start an argument. Because the idea of changing how the planet and its weather works often wanders into the contrail/"chemtrail" debate.
Thomas Kostigen, the author of many works about Earth and its maintenance, takes up the issue of correcting what we've done to the world, in his new book .
The author visited with several scientists to look at methods they've devised to avert climate disaster. We bring Thomas Kostigen on the air for an overview.