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)

India's tiger population is on the rise

This man is a 'knight' in latex armor for countless death row animals

'Gruesome Grannies' and 10-year-olds shut down London for the Extinction Rebellion

Villagers in remote rainforest village save their community with help from WildArk

A shelter dog who can't stop shaking his head charms his way to a new life

They braved a war-torn region to rescue 47 animals from the 'Zoo of Sorrow'

Students perform emotional haka dance in memory of Christchurch mosque victims

Kids around the world are striking for the planet

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