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)

How to save lives at a shelter near you

Man cuts lawns for the needy in all 50 states

In British election, millennials turned the tide

Remember that kid who invented a way to clean up ocean plastic? He's back, and it's happening

Every kid should know what birthday cake tastes like

Does 'clicktivism' do any good?

Willie Ortiz has been quietly saving homeless cats for 22 years

Run, Rob, Run! Man recreates Forrest Gump's epic cross-country run for charity

Female surgeons around the world recreate New Yorker cover

Artist creates ingenious sculptures with food

Will a 'Day Without A Woman' have an impact?

7 must-see films at the 2017 Environmental Film Festival