Social proof is a shortcut to decide how to act. Cialdini has used the principle of social proof to prevent environmental theft. Consider the case of Arizona’s Petrified Forest National Park.

Welcome to Nat Geo Your Shot: National Geographic’s global community for aspiring visual storytellers. Find the community on Instagram @NatGeoYourShot and follow along for hashtag challenges ...

The 9 best places to see autumn leaves in the UK Gutted summer’s over? Never fear – now you’ve got an excuse to discover the UK’s most beautiful autumnal landscapes ...

The President's executive order on "restoring truth and sanity to American history" calls on the Department of the Interior to ensure that any monuments, statues or memorials under its ...

U.S. President Donald Trump signed an executive order to allow the clear-cutting of 280 million acres of national forests and protected public lands.

The Dutch national museum said Thursday that one of its prized possessions, a rock supposedly brought back from the moon by U.S. astronauts, is just a piece of petrified wood.