Sustainable fuels: Why castor beans and canola are not suitable

Insufficient quantities, environmental risks: A new study shows that crops grown for fuel require large amounts of fertilizer and can lead to significant additional emissions.

05. May 2026
Rapsfelder um Selters in Deutschland, 3. Mai 2026
Rapeseed fields near Selters, Germany. (picture alliance / W2Art / Alexandra Wagner)

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Last updated: 05. May 2026