摘要:What are humans doing to the Earth’s atmosphere? Changing it, yes, as was acknowledged in the first international political meeting on climate change, held in Toronto in June 1988, called The Changing Atmosphere: Implications for Global Security. But are humans also damaging or destroying the atmosphere, as implied in the 1980s narrative of the depletion of the stratosphere’s ozone layer? Are we polluting the atmosphere with excess carbon dioxide or, as some would have it, fertilizing the atmosphere with an essential plant nutrient? And when considering the objectives of climate policy, what metaphors are used to describe the project: Is the Earth’s climate being controlled, enhanced, protected, preserved, or restored?