TIM Jarvis understands the power of images. He understands to tell a story well, it needs to be simplified and illustrated, not just to win the argument but to convey a sense of what is at stake if he doesn’t.

The Adelaide-based Jarvis is one of the world’s great explorers. Five years ago he recreated the epic escape journey of Ernest Shackleton, guiding a small 7m boat through the wilds of the Southern Ocean for 12 days to the remote island of South Georgia, then scaling its mountainous peaks. He has trekked to the South Pole, explored the Arctic and the Antarctic.

Jarvis goes to the places the rest of us only read about or watch on television.

His latest adventure is to spread the word about the damage climate change is doing to the globe. The project is called 25Zero.

The broad plan is to climb 25 mountains that circle the equator that have, or in some cases, had, glaciers.

Despite being in some of the hottest nations of the Earth, mountains such as Kilimanjaro in Tanzania, Mt Stanley in Uganda and the Carstensz Pyramid in Indonesia also carry massive ice glaciers that have been there for more than 10,000 years.

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