From Climate Central (Damian Carrington):
Three-quarters of the world’s food today comes from just 12 crops and five animal species and this leaves supplies very vulnerable to disease and pests that can sweep through large areas of monocultures, as happened in the Irish potato famine when a million people starved to death. Reliance on only a few strains also means the world’s fast changing climate will cut yields just as the demand from a growing global population is rising.
There are tens of thousands of wild or rarely cultivated species that could provide a richly varied range of nutritious foods, resistant to disease and tolerant of the changing environment. But the destruction of wild areas, pollution and overhunting has started a mass extinction of species on Earth. The focus to date has been on wild animals — half of which have been lost in the last 40 years — but the new report reveals that the same pressures are endangering humanity’s food supply, with at least 1,000 cultivated species already endangered.
Tutwiler said saving the world’s agrobiodiversity is also vital in tackling the number one cause of human death and disability in the world — poor diet, which includes both too much and too little food. “We are not winning the battle against obesity and undernutrition,” she said. “Poor diets are in large part because we have very unified diets based on a narrow set of commodities and we are not consuming enough diversity.”
The new report sets out how both governments and companies can protect, enhance and use the huge variety of little-known food crops. It highlights examples including the gac, a fiery red fruit from Vietnam, and the orange-fleshed Asupina banana. Both have extremely high levels of beta-carotene that the body converts to vitamin A and could help the many millions of people suffering deficiency of that vitamin.