2009 · Milestone

EPA endangerment finding for greenhouse gases

EPA determined that greenhouse gases threaten public health and welfare—establishing the legal basis for federal GHG regulation of power plants and vehicles.

Milestone Coal Petroleum Natural Gas

Historical era

Shale gas & renewable buildout (2005–2019)

Shale drilling expanded gas supply; wind and solar capacity grew sharply even as coal peaked.

Nearby on the timeline

2009 ARPA-E established
2009 FERC Order 676-C — Blanket Sales Certificates - Order C
2009 FERC Order 717-A — Standards of Conduct — Rehearing and Clarification (Order 717-A)

Sources

EPA — Endangerment and cause findings

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