Doing nothing vs. doing something

The blue line in this chart shows the increase in greenhouse gases if we do nothing. The orange line shows the OECD’s estimates of what would happen if we pursued a range of cost-effective solutions. These include removing subsidies for environmentally harmful energy production and consumption and creating a watertight global market for emissions trading. Even solutions such as these would come at a cost: By 2050, global GDP would be 4% lower than if we took the business-as-usual approach. However, as world GDP is forecast to grow by 250% over that same period, that may well be a price worth paying.

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