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James Raffan circumnavigated the Arctic Circle to put a human face on climate change. His rare and insightful story touches the Earth's last wild places revealing the breadth of human adaptation and ingenuity.

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A new photographic exhibition documenting the diverse cultures of 21st century London opened today at the Royal Geographical Society (with IBG).

What is dust? How does it get into the atmosphere and shape our climate? Dr Rob Bryant from the Department of Geography at the University of Sheffield joined us to discuss