More than 150 years later, researchers are using Thoreau’s records to gather evidence of how the climate has warmed in the area of Walden Pond, in Concord , Massachusetts, a few miles from Boston.

New research shows corn ethanol is more harmful to human health and the environment, while biofuels from non-food sources are less harmful to people and the planet.

In this ScienCentral web exclusive Chef Suvir Saran, of New York City’s Devi restaurant, demonstrates how to use turmeric in a delicious recipe and defines what curry really is.