16:30BBC Inside ScienceOrganic farming emissions; Staring at seagulls; Salt and dementiaBBC Radio 4 Duration: 28 minutes Thu 24th Oct 2019, 16:30 on BBC Radio 4 LWAvailable for over a yearListen nowAgriculture and greenhouse gases: We answer your questions Show more GenresFactualScience & NatureFactualScience & NatureScience & TechnologyBrandBBC Inside Science Source: BBC Online