Episode details
Available for over a year
The hole in the ozone layer now reaches over land; a visit to a prehistoric axe factory; how to date an ancient ice block; some good news for those who lead busy, stressful lives.
Programme WebsiteUse BBC.com or the new BBC App to listen to BBC podcasts, Radio 4 and the World Service outside the UK.
Available for over a year
The hole in the ozone layer now reaches over land; a visit to a prehistoric axe factory; how to date an ancient ice block; some good news for those who lead busy, stressful lives.
Programme Website