All For One All For Earth

WWF was originally founded in the 1950s to help other organizations with funding problems. It was brought together by three men: Sir Peter Scott, E.M. Nicholson and Sir Julian Huxley (Source). Now, 50 years later, WWF is one of the world's leading organizations on the environment, helping with preservation and conservation of the environment, the funding of other similar groups, raising awareness and setting up global events. WWF has hundreds of projects, and allows people to help them, either by donating or by physically going there.

WWF has internships available here: https://worldwildlife.org/internships