The United States’ withdrawal from the arms control agreement has heightened tensions and left the remaining signatories scrambling to keep the deal alive.

The Green New Deal has motivated those who want the United States to undertake unprecedented climate action, but it has also drawn backlash. How is the rest of the world grappling with decarbonizatio…

Once a fringe movement, green parties are increasingly shaping the debate in countries around the world. How influential are they, and what comes next?

The alliance with Japan has been the cornerstone of U.S. security policy in East Asia for decades. Now, Japan’s role in global security is growing as challenges from China and North Korea mount.  …

The Good Friday Agreement has dampened sectarian conflict and brought stability to Northern Ireland, but the peace deal has been challenged by Brexit-related border tensions that have thrown the regi…

With its comparatively open and well-regulated immigration system, Canada remains a top destination for immigrants and refugees.