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Declaration of Independence

There is perhaps no more enigmatic figure in American history than Thomas Jefferson, born April 13, 1743. How should his legacy be understood today?

The Second Continental Congress adopted the Declaration of Independence on July 4, 1776. Thomas Jefferson was not then credited with its authorship.

Livestock emit greenhouse gases. They also can sequester carbon and boost biodiversity.

On Earth Day, one mom argues for “green time” over “screen time.”

In the case of eco-art, the artists have become educators and translators of environmental science and data.

Inge Lehmann was the seismologist and mathematician who figured out what the Earth's core was actually made of.

Wildfires in California, floods in Venice, robot-bees, and cows that mitigate climate change.