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Expand chart
Data: U.S. Energy Information Administration; CHART: Naema Ahmed/Axios

America’s electricity mix has undergone profound changes over the last decade, with natural gas and renewables rising and coal declining.

The big picture: The energy revolution has occurred differently across the U.S., so let’s tell these stories through four states whose electricity mixes are notable for one reason or another.

1. Massachusetts: In light of last week's tragic natural-gas explosions, it's worth noting that the state's reliance on the fuel has increased in the last several years, from just above 50% to nearly 80%.

2. Iowa: This political battleground is known most for ethanol when it comes to energy. But its wind industry is quickly becoming a force to reckon with as its share has increased sharply, at coal’s expense.

3. Delaware: This is ground zero for America’s shift from coal to natural gas. Here’s a staggering stat: Delaware generated 87% of its electricity from natural gas in 2017, almost five times more than its share a decade earlier. Its dependence on coal power fell to 4.7%, down from 70% a decade ago, according to the U.S. Energy Information Administration.

4. California: The Golden State has recently adopted aggressive clean-energy goals in the last month, mandating that 100% of its electricity come from carbon-free sources by 2045, including a renewable-specific target of 60% by 2030. Often a bellwether for other progressive state policies, California’s shift away from natural gas is markedly different than even other progressive states (like Delaware).

Go deeper: America’s renewable electricity ticks up

Go deeper

Biden explains justification for Syria strike in letter to Congress

Photo: Chris Kleponis/CNP/Bloomberg via Getty Images

President Biden told congressional leadership in a letter Saturday that this week's airstrike against facilities in Syria linked to Iranian-backed militia groups was consistent with the U.S. right to self-defense.

Why it matters: Some Democrats, including Sens. Tim Kaine (D-Va.) and Chris Murphy (D-Conn.) and Rep. Ro Khanna (D-Calif.), have criticized the Biden administration for the strike and demanded a briefing.

9 hours ago - Health

FDA authorizes Johnson & Johnson's one-shot COVID-19 vaccine for emergency use

Photo: Illustration by Pavlo Gonchar/SOPA Images/LightRocket via Getty Images

The Food and Drug Administration on Saturday issued an emergency use authorization for Johnson & Johnson's one-shot coronavirus vaccine.

Why it matters: The authorization of a third coronavirus vaccine in the U.S. will help speed up the vaccine rollout across the country, especially since the J&J shot only requires one dose as opposed to Moderna and Pfizer-BioNTech's two-shot vaccines.

Updated 9 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Annelise Capossela/Axios