EMISSIONS

Our Pepsico vehicle fleet is currently comprised of several different fuelefficient models, including electric-vehicle box trucks, compressed-natural-gas tractors, and advanced diesel technology from some of the leading manufacturers around the world. The Tesla Semi truck represents one part of our broader strategy, offering us a unique opportunity for us to explore electrification across our Class Seven and Eight fleet.” – BROOKE VANE Company representative, Pepsico

Sunny-day floods – surges caused by high tides, not heavy rains – are 10 times more frequent today than 50 years ago. William Sweet, an oceanographer at NOAA, explains what they are, and why they’re getting worse.

Popular Mechanics: Where are sunny-day floods happening? William Sweet: It’s more low-lying East Coast and Gulf Coast cities like Houston, Atlantic City, Miami. It’ll be sunny out but suddenly streets are under water. It doesn’t help that the land is sinking there, while sea level is rising. PM: But sea-level rise is the main factor? WS: Yes, it increases the reach of high tides. Melt from ice sheets and glaciers – plus thermal expansion – put the current global sea-level rise at 2,5 centimetres every eight years. But gravity is also working against us: as Antarctica loses mass, its gravitational attraction is less. This redistribution means the US feels an additional rise. PM: How are cities preparing? WS: They’re investing in pumps and inflowpreventer storm drains. It’s analogous to snow in the northeast: cities just have to budget for it.