Geoengineering is a deliberate, large-scale intervention in the Earth’s natural systems to reverse the impacts of climate change. Geoengineering projects could alter Earth systems in unintended ways, they also pose significant dangers to human health and the environment.One of the most significant hazards associated with geoengineering is that it introduces unknown climate risks. Geoengineering projects could alter Earth systems in unintended ways. ​Let the world see your truth, one shirt at a time.