Activism is the practice of strong, vigorous support (through action) in support of or against a controversial issue. Environmental activism efforts include battling climate change and greenhouse gas emissions, defending the oceans, protecting forests, creating a toxic-free future, campaigning for sustainable agriculture, protesting animal testing, promoting vegetarianism/veganism, protecting endangered species and many more. (Source: Merriam-Webster Dictionary, Greenpeace / Photo: Flickr)

Students perform emotional haka dance in memory of Christchurch mosque victims

Is there a reason toothpaste has to be in a box?

This grandmother spent 2018 cleaning up British beaches — and she's not done

Why it's so hard to fix stuff that needs repairing

Montreal turns iconic hospital into a shelter for people and their pets

Why soccer nets are a deadly issue for animals

Teen raising $1M to fight sister's fatal disease

The world's most famous pig is cancer-free now, and her unique CT scanner is saving lives

'Sesame Street' takes on homelessness

How WildArk is saving biodiversity, one safe haven at a time

Why Brits are tossing empty potato chip bags in the mail, not the trash

Secret Service honors George H.W. Bush with their favorite memory of the former president