See how six countries are faring amid efforts to protect 30 percent of the planet’s land and waters by 2030, and what will be saved if they succeed. 

The truth is that his tenure as secretary of state was often rocky, and as full of setbacks as acclaim.

The dam holding back chaos in U.S. foreign policy is cracking.

The ratings agency’s decision will have no consequences for the U.S. dollar’s global role, but it highlights the country’s darkening fiscal outlook and governance challenges.

Leaders at the UN climate meeting in Dubai signaled a crucial pivot away from fossil fuel use, but significant hurdles remain for a speedy transition to emission-free energy.

The passing of America’s preeminent foreign-policy thinker and practitioner marks the end of an era. Throughout his long and extraordinarily influential career, Henry Kissinger built a legacy that Am…

The country’s massive economic problems will be a vexing challenge for whoever becomes president.

Wars are fought not only on the battlefield but also in domestic political debates and in histories written after the fact. In the case of the US invasion of Iraq 20 years ago, we are still in this final phase, seeking an elusive consensus about the war’s legacy.