This chart is based on WRI’s recent analysis of potential greenhouse gas emissions reductions under existing federal authorities and state actions through 2030.

The three potential reduction scenarios analyzed are a “Lackluster” scenario that includes state reductions contained in state statutes; a “Middle-of-the-Road” scenario that includes state reductions called for in state statute and existing executive orders; and a “Go-Getter” scenario that includes state reductions from state statute, executive orders, and regional cap-and-trade programs. For more information on the three scenarios, see http://earthtrendsdelivered.org/node/388.

On the state level, whether reductions are realized at the lower or upper end of the range projected in the figure depends on the continued resolve by governors and legislative leaders in the 25 states counted as having taken actions.