Elements: Christmas Special

The best bits from our exploration of the chemistry of the world economy. From essential nutrients to lethal poisons, and from frivolous tableware to the existential threat of global warming - the elements of the periodic table constitute every aspect of our material world. In this special round-up programme, Justin Rowlatt looks back at the some of the most amusing, and some of the most upsetting, interviews from our Elements series.

(Picture: Periodic Table advent calendar; Credit: Science Creative Quarterly)