Fatma Tanis

It is the world's largest displacement crisis: 13 million people have fled their homes in war-torn Sudan. In neighboring Chad, both refugees and locals cope with this extraordinary upheaval.

A team of independent famine experts, working under the U.N. umbrella, believe Sudan is experiencing famine. But issuing a declaration — which could bring in more aid — turns out to be complicated.

The virus has been confined to certain areas of the Amazon but is moving into new turf as climate change enables the insects that spread it to spread out. Here's what we know.

An emergency coordinator from Doctors Without Borders has seen crises around the world but says she's never seen anything like this. A new report from the aid group underscores her assessment.

Health-care facilities have been under attack by both sides in Sudan’s year-long civil war. Aid groups are trying to shore up care with mobile clinics but fear the need is too great.

A year ago, she packed what she could, helped her mother, who's in a wheelchair, into the car and drove all night to find a haven. In the U.S. to accept an award, she talks about her country's crisis.

A new report shows that tens of millions of children around the world are not getting enough to eat. This leaves a staggering number of kids under five with diseases associated with malnutrition which often impair a child's development and therefore their future prospects as well.

An Israeli strike hit a food distribution center, killing a U.N. relief worker — a sign of the heightened dangers and challenges of bringing much-needed aid into Gaza during the war.

The conflict is expected to escalate even further in the coming days. But for now, Hamas sees itself with the upper hand.

Peace talks and diplomatic progress have raised hopes of an end to the war. But has there been any progress in addressing the country's devastating degree of hunger?