Nearly 200 nations faced a Monday deadline to file what the United Nations’ climate chief calls “among the most important policy documents governments will produce this century."

As climate change accelerates, plants face mounting pressure to adapt to shifting ecosystems and environmental conditions. This challenge is especially urgent for crops—plants resilient to drought and heat are essential to secure food supply in an unpredictable future.

Douglas McIntyre, Editor-in-Chief at Climate Crisis, reports that most major nations expected to submit their annual climate action plans to the UN will miss the deadline. These plans, a key component of the Paris Accords,