The “Wall of Welcome” in front of European Commission headquarters in Brussels, Belgium, Sept. 14, 2015 (Photo by Wiktor Dabkowski for dpa via AP Images).

In 2015, more than 1 million people, mostly from Syria but also Eritrea, Sudan and other countries wracked by conflict and economic turmoil, found their way to Europe in search of asylum, where they struggled to rebuild their lives, often in the face of xenophobia and exclusion. Those were the lucky ones. Thousands of other refugees and migrants died while attempting to cross the Mediterranean and Aegean seas, a tragic waste of human life that was symbolized in a photograph of the lifeless body of a four-year-old Syrian boy, Alan Kurdi, which washed up on the shore of a beach […]

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By 2050, hundreds of millions of people in developing countries will have left their homes as a result of climate change—a mass displacement that will make already-precarious populations more vulnerable and impose heavy burdens on the communities that absorb them. Unfortunately, the world has barely begun to prepare for this impending crisis. Those displaced by climate change are neither true refugees nor traditional migrants, and thus occupy an ambiguous position under international law. The world needs to agree on how to classify environmental migrants, as well as what their rights are. It also needs to strengthen its capacity to manage […]