At this year’s climate summit, the United States is out and Europe is struggling. But emerging countries are embracing renewable energy thanks to a glut of cheap equipment.
The president’s trade truce with China has lowered U.S. tariffs to a level that could pause a longer-term effort to reduce America’s dependence on Beijing.
Since Beijing announced a new visa to attract young science and technology graduates, a backlash has erupted online, forcing the government to respond.