He said, “That’s a completely new realm. Across the world and in many breadbasket regions, this is going to occur in the next couple years. The main message here is: This is right around the corner.”
Climate change scientist and crop modeller Jägermeyr also warned in recent interview with that the conflict in Ukraine could combine with severe weather triggered by climate change to cause shortages.
Jägermeyr said in an interview with Scientific American, “Climate change is increasing weather and yield variability and if severe weather events such as droughts, heatwaves, or floods will hit this season there will be compound effects, destabilizing the food system further.
“China already indicated that their wheat outlooks are very poor and other world regions don’t look great either.”
Last year’s UN climate report warned that the world could face a ‘shocking rise in hunger,’ unless climate change is contained.
To contain warming at 1.5C, manmade global net carbon dioxide (CO2) emissions would need to fall by about 45% by 2030, the report warned.
The Intergovernmental Panel on Climate Change (IPCC) report shows unprecedented changes were needed across society to limit global warming to 1.5C above pre-industrial levels.
The review of thousands of scientific papers sets out the impacts of temperature rises of 1.5C compared to 2C, and what is needed to curb temperatures at that level.
Impacts including harm to yields of maize, rice and wheat will be less severe at 1.5C than 2C.
Matthew Spencer, Oxfam's director of campaigns and policy said last year: 'Climate change has set our planet on fire, millions of people are already feeling the impacts, and the IPCC is clear that things could get much worse without immediate action.
'The faster governments phase out coal, embrace the renewable energy revolution and move to protect communities at risk, the more lives and livelihoods will be spared.'
He warned the world was already seeing the beginning of 'massive displacement and a shocking rise in hunger' - and unless temperatures stayed below 1.5C, island nations would disappear beneath rising seas.
Watch: Thousands march for global climate action