In Our TimePhotosynthesisBBC Radio 4 Duration: 47 minutesFirst broadcast: Thu 15th May 2014, 09:00 on BBC Radio 4 FMLatest broadcast: Thu 14th May 2020, 21:30 on BBC Radio 4 FMAvailable for over a yearListen nowMelvyn Bragg and his guests discuss photosynthesis, a chemical process which drives most life on Earth. Show more ContributorsPresenter:Melvyn BraggInterviewed Guest:Nick LaneInterviewed Guest:Sandra KnappInterviewed Guest:John AllenProducer:Thomas MorrisGenresFactualHistoryBrandIn Our Time Source: BBC Online