This article originally appeared on HBR.org.

In a world where climate change is increasingly apparent, we all encounter people who are changing their behavior to help protect the environment: People who cycle to work to avoid consuming fuel, carry their own cutlery to avoid using disposable plastic forks, or hang onto their recyclable waste, bypassing trash cans until they can find a proper place to recycle it.

Read the full article on HBR.org (subscription may be required).