A geoengineering company would use tiny specks of silica to block sun rays — and make billions of dollars.

A U.S. firm led by former Israeli government physicists, Stardust seeks to patent its proprietary sunlight-scattering particle — but it won’t deploy its technology until global governments authorize s...

Proportional representation could help restore American democracy.

In state after state, they rejected proposals to fix two of the most hated problems in politics.

Lessons from a Democratic winner in Trump country.

The bipartisan task force would investigate structural reforms like multimember districts and adding more House members in an effort to address growing polarization and distrust of Congress.