The dream of clean hydrogen has tantalized energy experts for years, but producing it has been tough. Many start-ups think the answer could lie beneath our feet.

The Trump administration broke the law, Michigan and others told a court, by declaring an “energy emergency” and forcing an aging coal-burning plant to keep operating.

Stardust Solutions says its tiny spheres can reflect the sun’s rays without harming people or the environment. Critics say private companies have no business altering Earth’s atmosphere.

A new report from the federal government says an increase in greenhouse gas emissions from the oil and gas industry in 2024 offset decreases in several other industries.