She was seen for two decades as a future face of the Democratic Party. Is she now suddenly a figure of its past?

© Vincent Alban/The New York Times

The state divide over abortions has only deepened since the Supreme Court decision. But research shows the number of abortions has climbed.

© Julia Rendleman for The New York Times

An early grid battery was installed in the Atacama Desert in Chile 15 years ago. Now, as prices have tumbled, they are increasingly being used around the world.

Although nature is sometimes very fragile, decades of conservation rhetoric have perhaps overstated that fragility.

California and eight other states have outdated restrictions on building nuclear power plants.

New research shows that climate change is beginning to erode home prices in the most disaster-prone areas of the United States. Here’s what to know.

The United States is largely absent from the United Nations climate negations in Brazil. So who is stepping up?

The California governor painted the president as a threat to American competitiveness by letting China dominate the renewable energy industry.