About 17 years ago, I began preparations for applying to colleges in America. One of the prerequisites to qualify for an undergraduate program was the Test of English as a Foreign Language (…

Sara Sultan |

Satellite image and analysis of damage caused by Tropical Cyclone Evan in Samoa. Credit: UNITAR-UNOSAT With crisis mapping’s increasing profile, other organizations have joined the fray. Just this…

Dana Rawls |

Photo: SkyPics Studio/Shutterstock Data on the sharing economy (Uber, Airbnb and so on) are scarce, but a recent study estimates that the revenue growth of these platforms has been dramatic. In…

Hernan Winkler |