The worst drought ever occurred in South Africa between 2015 and 2018.
Dust storms - what causes them, why they appear to be becoming more frequent and severe.
Global warming threatens to change the whole fragile Arctic ecosystem.
Sean Batty explores some of the most stunning places Scotland has to offer.
John Michie journeys through the geography and history of Scotland.
David Hayman follows in the footsteps of Tom Weir as he journeys through Scotland.
Sean Batty shares the best bits from his Scottish adventures.
