Climate change is fueling geopolitical competition in the Arctic. An independent Greenland could play an important role in years to come.

Houthi attacks against commercial ships in the Red Sea have upended global shipping. The disruptions could soon ripple through the global economy.

President-Elect Joe Biden’s appointment of John Kerry to a newly created climate envoy position shows that he is committed to returning the United States to its status as a global leader on climate change.

Despite limits to their political and social power, Iranian women are leading protests that could jeopardize the regime.

Some governments and businesses are starting to use digital and paper passes that certify a person has been immunized against COVID-19, spurring debate over the ethics of vaccine passports.

Scientists say governments need to act with more urgency to keep global warming in check. How much progress is possible at COP28?