The proliferation of mobile phones in Africa, alongside falling handset and data costs, are making the widespread usage of e-health solutions increasingly viable. A recent report by mobile operator trade association GSMA found that 557 million Africans have mobile subscriptions. This figure is expected to reach 735 million by 2020.

science diplomacy—whereby experts collaborate scientifically to address common problems and build constructive international partnerships—has more potential than is often recognized. Science diplomacy can of course help countries solve on-the-ground challenges and improve standards of living for their citizens. But it can also lay groundwork for improving relations in a region often defined by tension (if not outright conflict) through functional, scientific cooperation that is less politicized.

Climate change may render parts of the Middle East -- now home to over 500 million people -- too hot for humans ... even if global temperature rise is capped at two degrees Celsius compared to the pre-industrial era, “the temperature in summer in these regions will increase two times faster" than elsewhere in the world. That means by mid-century, during the hottest part of summer, “temperatures will not fall below 30 degrees at night, and during daytime they could rise to 46 degrees Celsius.”

Unintended teen pregnancies are a major global health threat in sub-Saharan Africa, where 40 percent of girls and young women want to use contraception but are unable to access it. Every year, 70,000 adolescent girls die in developing countries from complications related to pregnancies, including unsafe abortions.

Worldwide displacement hit an all-time high in 2015, affecting more than 60 million people, according to United Nations Secretary-General Ban Ki-moon. This rise in global mobility has contributed to migration becoming a priority for the global development community — an ever-evolving situation that has resulted in a sea change in international policy and relations.

0.4 percent ... That's the proportion of global development assistance that goes to mental illness prevention, care and treatment, according to [Harvard researcher] Daniel Vigo. It's $1.5 billion of the $372 billion total health assistance spending around the world over the last 15 years.

Egypt is seemingly getting hotter with every passing year. As of 2010, data from the Egyptian Meteorological Authority showed that Egypt’s five hottest years in recorded history have occurred from 2002 onward ... heat waves are becoming more common and prolonged. The study showed that from 2001 to 2010, Aswan recorded more than 100 summer heat wave days, whereas in the 1970s, that number was closer to 40 ... "when the temperature goes up, the number of deaths goes up,”

Some psychologists and social entrepreneurs have suggested, “If you don’t pay for it, you won’t value it.” But there is little evidence to support this theory. Studies of demand for non-acute care as a function of price show nothing to suggest that the act of paying for something makes a person more likely to use it.