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

The UN climate summit delivered on a loss and damage fund, but it fell short on goals to reduce emissions and avoid the worst consequences of climate change.

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

Countries made big pledges at last year’s UN climate conference, but greenhouse gas emissions continue to rise. This year’s event in Sharm el-Sheikh will focus on translating those commitments into a…

Billion-dollar disasters such as Hurricane Ian are on the rise in the United States. Officials should take swift action to reduce the damage and protect Americans.

Russia’s moves to mobilize thousands more troops and to annex more of Ukraine’s territory signal a new, potentially more dangerous phase of the war.

The debate over how to address persistently low voter turnout is heating up ahead of the midterm elections.

The Inflation Reduction Act promises the largest investment in climate action in U.S. history—$370 billion—and could lead to significant emissions reductions over the next decade.  

The Supreme Court’s decision on the EPA also undermines Biden’s leadership in the global fight against climate change.

Ukraine’s first steps toward eventual EU membership are the start of a long process that has raised the stakes in the country’s war with Russia.