{"version":"1.0","type":"rich","provider_name":"Acast","provider_url":"https://acast.com","height":250,"width":700,"html":"<iframe src=\"https://embed.acast.com/$/614af9b8d7b9e1001391ec33/672d23a089045d706402530c?\" frameBorder=\"0\" width=\"700\" height=\"250\"></iframe>","title":"Can mediaeval knowledge save the world?","description":"<p>In a world of limited resources, people in the Middle Ages knew how to exploit the natural world in a way that was sustainable. Jason talks to Annette Kehnel about sustainability in the Middle Ages.</p><p><br></p><p>Producer: Natt Tapley</p><p>Audio: Pete Dennis</p>","author_name":"Jason Kingsley"}