But is it enough? The Jungfrau cog railway in Scheidegg, Switzerland. Efforts are underway to slow the melting ... [+] glaciers in this fragile part of the Alps. The glaciers of Grindelwald are ...

In their 156 years of climbing to the summit of Mount Washington, the Cog Railway locomotives have gone from burning wood to burning coal to burning oil to burning diesel to burning biodiesel.

Does such a winter train really exist? And if it does, where is it found? The Pikes Peak Cog Railway — aka “The Cog” — has carried travelers to the top of “America’s Mountain” since ...