In March 2014 Claire M. Belcher gave a talk a TEDx Exeter an independently organised TED event. Here she explains the relationship between fire and atmospheric oxygen.
What else do we need to know to understand fire? In order to study ancient wildfires we need to know about the fuel that they might burn.
Therefore our group also focuses on studying the evolutionary history of plants.
This excellent introduction by the Herberium at Kew Gardens, London not only shows the exceptional herbarium at Kew but also includes a brief introduction about the evolutionary history of plants (this begins about 4 mins into the video).