Throughout the 19th century, many American leaders supported the development of “internal improvements”— primarily the formation of a transportation infrastructure: roads, turnpikes, and canals. The ...

This lesson is part of our Climate 101 educational series for parents and K-12 educators. The transportation sector is one of the biggest reasons why the average temperature on our planet is climbing, ...

The schoolchildren piled into the rail car in downtown Washington and looked up and down as the lights flickered and the floor rumbled. “We’re here!” one of the young passengers shouted, all of them ...