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Related to carbon footprint: Carbon credit
The contribution of environmentally harmful gases, commonly known as greenhouse gases, produced by human activity. I always thought planting lots of trees was a good way of offsetting our carbon footprint, but apparently it's not as straightforward as that. The carbon footprint caused by the burning of fossil fuels has been colossal.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
The total contribution of carbon dioxide and other greenhouse gases by a particular activity, enterprise, or product. The increasing concern about the harmful effect of human activity on the environment has promoted the use of this term, which may soon be a cliché. The Boston Globe travel section headlined an article on “green” (ecologically harmless) vacations: “Leave Your Carbon Footprint at Home” (June 6, 2010). Gregg Hurwitz’s novel They’re Watching (2010) has the lines, “‘What’s a lifestyle coach do, exactly?’ I asked. ‘We’re working on reducing Keith’s carbon footprint.’”
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer