The Joe Biden administration says the restrictions are directed at protecting national security, not stifling economic competition.

During COP26, some countries pledged to stop using coal, a leading source of greenhouse gas emissions. But China, India, and some others remain reliant on coal.

The assassination of Iranian scientist Mohsen Fakhrizadeh will intensify debate in Tehran over whether to reengage in the nuclear deal with the Biden administration.

A sweeping win in parliamentary elections helps Iranian conservatives in a time of mounting tensions with Washington, but record-low turnout signals fading public support for Iran’s hard-liners.

Experts have warned that time is running out to avoid climate catastrophe. Will the global climate conference spark action?