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

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

The main battle tanks that the United States and Germany have agreed to provide Ukraine will help its forces punch through Russian fortifications and retake lost territory.

El Salvador and the Central African Republic have made Bitcoin legal tender, but market volatility has undermined the experiment.

Russia is targeting Ukrainian cities and civilian infrastructure with Iranian-made loitering munitions. Are these weapons effective in shaping the war?