Reducing food waste around the world is one of the keys to feeding a population of 9 billion people by 2050, but so is reducing “excessive demand for animal products” in developed countries, the World Resources Institute says in the interim findings of a report.

The report is being released at the Global Conference on Agriculture, Food and Nutrition Security and Climate Change this week in Johannesburg, South Africa.

• World Resources Institute — The Global Food Challenge Explained in 18 Graphics
• — Creating a Sustainable Food Future: Interim Findings
• — 2013-2014 World Resources Reports
• Global Conference on Agriculture, Food and Nutrition Security and Climate Change