The Ethics of “Geoengineering” the Global Climate

In the face of limited time and escalating impacts, some scientists and politicians are talking about attempting "grand technological interventions" into the Earth’s basic physical and biological systems ("geoengineering") to combat global warming. Early ideas include spraying particles into the stratosphere to block some incoming sunlight, or "enhancing" natural biological systems to withdraw carbon dioxide from the atmosphere at a higher rate. Such technologies are highly speculative and scien