Could it be this?
Previous Religious Studies GCSE papers have asked students to decide what the biggest threat to the world is. A statement response question might assert that global warming or climate change is the biggest threat, and students need to explain other candidates for the title ‘biggest threat’. They might talk about nuclear power and weapons; dangerous world leaders; the weakness of the UN; racism and xenophobia; shortages of commodities like water; or pollution.
Well a new candidate has to to be the Fall Armyworm which has shown up in Africa and poses a serious threat to food security and agricultural trade. It is native to north and south America, attacking up to 100 types of crops.