"Wild foods," or wild edible species, provide important nutrients for millions of people worldwide, but they were left out of a recent report on creating sustainable food systems.
To get on track to achieve sustainability goals, the report outlines a series of changes to the global systems of food production, energy, and waste management.
A recent paper found that rich nations are catching the vast majority of fish, even in the waters of lower-income countries, but doubts about the study's conclusions remain.
Carbon dioxide fertilizes plants, but it can also make crops less nutritious. A new discovery could help farmers develop new strains to feed the world even as carbon dioxide levels rise.