{"podcast":{"title":"Rare Earth","slug":"rare-earth-6755507","podcast_index_feed_id":6755507,"rss_url":"https://podcasts.files.bbci.co.uk/m001vbt0.rss","website_url":"http://www.bbc.co.uk/programmes/m001vbt0","image_url":"http://ichef.bbci.co.uk/images/ic/3000x3000/p0m33c1r.jpg","author":"BBC","episode_count":60,"summary":"Environmental journalist Tom Heap and physicist Helen Czerski tackle major stories about our environment and wildlife, celebrate the wonder of nature and meet the people determined to keep it wonderful.","last_synced_at":null,"page_url":"https://stenobird.com/podcast/rare-earth-6755507"},"episode":{"title":"Metals and Minerals","slug":"metals-and-minerals","published_at":"2025-06-20T12:00:00+00:00","page_url":"https://stenobird.com/podcast/rare-earth-6755507/metals-and-minerals","show_page_url":"https://stenobird.com/podcast/rare-earth-6755507","url":"http://www.bbc.co.uk/programmes/m002dlh3","audio_url":"http://open.live.bbc.co.uk/mediaselector/6/redir/version/2.0/mediaset/audio-nondrm-download-rss/proto/http/vpid/p0lkgj3v.mp3","summary":"The transition to an economy based on renewable energy and electric cars needs huge quantities of materials like copper and rare earth metals. Sourcing them can be a problem. Mining damages the surrounding landscape and many of the materials come from unstable regions with poor records on child labour and environmental regulation. Are there alternative materials or do we simply need to consume less? Tom Heap and Helen Czerski investigate. Producer: Emma Campbell Rare Earth is produced in collaboration with the Open University","meta_description":"The transition to an economy based on renewable energy and electric cars needs huge quantities of materials like copper and rare earth metals. Sourcing th…","key_points":[],"chapters":[],"topics":[],"duration_seconds":3190,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/rare-earth-6755507/episodes/metals-and-minerals/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/rare-earth-6755507/metals-and-minerals.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}