Camelina sativa is an excellent oil crop for biofuel production because it grows with little water and fertilizer on marginal land. To improve camelina as a dedicated biofuel plant, we have increased its photosynthetic CO2-fixation rates by modifying CO2 transport, assimilation and allocation and reducing the cost of photorespiraton. To extend its agricultural range, we are improving its stress tolerance against heat and drought. Several of these transgenic lines showed successful yield increases of over 50% in greenhouse trials. The international collaboration with Metabolix Oilseeds in Saskatoon, Canada, enabled field trials to study the effect of these transgenes on yield in the usual agricultural and climate environment.