International students — and the big tuition checks they bring  — are a key ingredient in the American college business model. But just as US colleges face a shrinking pool of domestic college-aged students, international students are feeling less welcome here. From the Higher Education desk at GBH in Boston, Kirk Carapezza reports that the shift could have major consequences for colleges – and the US economy.

Access to ambulances is severely limited in parts of Ghana, something that can be especially hazardous for pregnant women trying to get to the nearest hospital. Now, a new startup aims to transform maternal health care in the country with a unique emergency vehicle tailored to the local terrain.

US and Chinese officials are heading to Switzerland this weekend to talk about the trade war. At one time, both Washington and Beijing were promising not to back down. But the two sides have recently been signaling a willingness to compromise.

Thousands of undocumented migrants in Portugal have received official letters, advising them to leave the country voluntarily or face deportation. Critics say the measure is a political stunt by the center-right government ahead of national elections next week.

In her new book, “Four Mothers: An Intimate Journey Through the First Year of Parenthood in Four Countries,” journalist Abigail Leonard explores the experience of parenting across different cultures. She joins The World’s host, Carol Hills, to share what she witnessed.