BBCNEWS HARDtalk October 8, 2021 03:38:00
We explain the consequences. for example, it's striking that 50% of all human calories come from just three plant species — rice, maize and wheat. many of those crops are going to be seriously challenged by new peak temperatures or prolonged periods of acidity. so for food security — feeding a growing population — reasons alone, we all need to be very concerned about the impacts of climate change. but do you also, then, wade into very complex debates about engineering of new genetic types of plant? do you tell the world that, "you know what? "given that we're at a world population of 8 b...