Countries Are Signing Up for Sizeable Carbon Prices

By Ian Parry

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With global leaders set to start signing the landmark Paris Agreement on climate change tomorrow—April 22 is Earth Day—at the United Nations in New York, countries will embark on the potentially difficult and contentious issue of setting prices for greenhouse gas emissions, most importantly carbon dioxide (CO₂). Our back of the envelope calculations show that most large emitters will need to charge anywhere from $50 to $100 per ton or more (in current prices) by 2030 to meet their commitments to reduce carbon emissions.

The Price of Oil and the Price of Carbon

By Rabah Arezki and Maurice Obstfeld

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“The human influence on the climate system is clear and is evident from the increasing greenhouse gas concentrations in the atmosphere, positive radiative forcing, observed warming, and understanding of the climate system.” —Intergovernmental Panel on Climate Change, Fifth Assessment Report

Fossil fuel prices are likely to stay “low for long.” Notwithstanding important recent progress in developing renewable fuel sources, low fossil fuel prices could discourage further innovation in and adoption of cleaner energy technologies. The result would be higher emissions of carbon dioxide and other greenhouse gases.

Policymakers should not allow low energy prices to derail the clean energy transition. Action to restore appropriate price incentives, notably through corrective carbon pricing, is urgently needed to lower the risk of irreversible and potentially devastating effects of climate change. That approach also offers fiscal benefits.