Climate Home: It can take up to 30 years to improve a crop variety, test it and persuade farmers to adopt it.
That means the speed of climate change in Africa could make a new variety of maize useless even before the first harvest, according to new research.
But two separate studies that address the challenge of food security in a rapidly warming world suggest that the answers may lie not just in future weather but in todays soils.
One says that better soil data can be used to predict surer levels of...