On Christmas Eve 1968, astronaut William Anders captured a photograph that depicted the earth as a wispy blue orb suspended in space. The image – described by Galen Rowell as the most influential image ever taken – crystallized in our collective conscience the beauty and the fragility of our shared home. The impact of the photograph was so profound that many have credited it to the birth of the environmental movement – a testament to the power of the single image in mobilizing people on a global scale. Conservation Photography has just this century been defined as the active use of the photographic process and its products to advocate for conservation outcomes, but in reality photographs have been used to celebrate the beauty of the natural world and to inspire conservation outcomes for over 150 years. In 1864, Abraham Lincoln was so inspired by Carleton Watkins stereographic photographs of Yosemite, some 2,000 miles away, that he signed a bill that declared the valley inviolable, pav...