The global energy crunch and the quest for diversification of supplies unleashed by the war in Ukraine risk to derail the path towards green transition worldwide. Besides, the war is raising new challenges on food security. The rise of global emissions has not even slowed down by the outbreak of the COVID-19 pandemic and the risk of further setback is looming large. Will economic growth and low-carbon development re-couple? How to avoid a standstill in global climate policy?  Are we inevitably doomed for a hotter planet? Or, on the contrary, is it still possible to revive international cooperation and make sure that the transition is the only answer to energy insecurity? After the Ukraine war, is a food crisis just around the corner?