Geothermal has long been hyped as the next big thing in renewable energy, but its breakthrough moment hasn’t happened yet. Barriers to expansion include the elusiveness of sites offering the magic trio of heat, water and permeability and concern for unique ecosystems. Contributor Jessica McKenzie on geothermal energy’s possibilities and challenges and the government funding that may finally fire it up.

When humans began to put down roots, we also started to forge what Giulio Boccaletti calls a “social contract” with water. In his new book, “Water: A Biography,” the London-based scientist explores that relationship through a long historical lens. BookShelf contributor Gary Wilson reviews the volume and finds that political ambitions and economic development are central to the story.

In our annual analysis of what’s ahead on the environment beat in 2023, there are some things to count on: worsening climate disasters and continued politicking over energy transitions, but also regulatory action on greenhouse gas emissions (not to mention on “forever chemicals”). Other things are less clear: environmental rulings by a conservative U.S. Supreme Court, energy impacts of war in Europe and the effectiveness of COP28 and treaty talks on plastic pollution. Read the full overview and get more in our “2023 Journalists’ Guide to Energy & Environment [43]” special report.