Rick] had a problem. His garage refrigerator was tasked with a critical duty—keeping refreshing beverages at low temperature.

These days, Internet connectivity is ubiquitous, so you can look up live weather data on just about any device around you.

Scientists fear warming is driving a collapse in the ocean currents that shape climate far and wide. The ice-choked waters off Greenland might hold the key. By Raymond Zhong and Esther Horvath Mr.