I interviewed David Attenborough about why he wanted to make Our Fragile World.

David enjoying a light moment at Wytham Woods near Oxford. The woods have been studied for more than 30 years offering a great insight into changes occurring to our wildlife.

Me on top of Cairn Gorm. We waited several days to get to the top and when we did it was so windy the piece we did with David was unusable.

Photo by Lea Aldridge

Warm-water loving sea snails are moving round our coast at an alarming rate. The crew filming David and with the snails.