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Carbon offsetting, how does it work?

In the struggle to reduce greenhouse gas emissions, companies are looking at offsetting their pollution with a new form of environmental currency, the carbon credit.


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Julia Langer

But how exactly do carbon credits work? Are they useful in reducing the corporate environmental footprint? And how effective will personal carbon credits be in our own indvidual efforts at going green?

On Friday, Jan. 18, environmental scientist Julia Langer, director of the Global Threats program, took your questions on the pros and cons of carbon offsets.

Read her responses below and thanks for all of your questions.

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