View of the lower part of an airplane

Fly the Friendly Skies in a Grease Powered Jet

A United Airlines jet is the first to take off using only fuels made from discarded fat.
A leader speaks into a megaphone to a crowd.

When Unions Fought for the Environment

In a 1998 paper in Environmental History, Scott Dewey argues that unions were a key force for the emerging cause of environmentalism in the 1950s and '60s.

Animal History: An Emerging Scholarly Trend

A survey of emerging fields in animal history and animal studies.
The Organ Mountains in New Mexico

Reading the Landscape

For the past two months, I have been on a researching road trip through the West and Southwest—Colorado, ...