I walked up all of these today. #StepUpMountain 20th floor in Battersea's Somerset estate. #StepUpMountain

Me on National Geographic Live!

Last year I was lucky enough to be invited into National Geographic in Washington DC to give a Nat Geo Live! presentation. Part of National Geographic’s Geography Awareness Week this is my 50 minute presentation compressed into 20. I hope you like it.


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