As a part of our Photos with a Purpose series, we host inspiring photographers who create powerful images that carry an important message, and here, we present the best of the best. Here are the top 7 projects combining their art with activism for the planet.

Conservation Photographers Work for Change Witness the Story of Canada's Threatened Great Bear Rainforest To save one of the planet's most priceless treasures, for the last two weeks, photographers including Ian McAllister, Daniel Beltra, and Thomas Peschak have taken part in the International League of Conservation Photographer's (iLCP) RAVE (Rapid Assessment Visual Expedition) in the Great Bear Rainforest to tell the story of this incredible place and the people working to save it. See more Photos with a Purpose. See the Incredible Great Bear Rainforest Image Collection

Endangered Species Captured in Lego Form

Birds' Message from the Ocean Gyre

Devastating Images from the Gulf Oil Spill

Within Inches of Whales

100 Places to Remember Before They Disappear

Artist Tackles World's Deadliest Diseases

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