It's never been easy to ensure that people around the world have enough to eat. And now, with the effects of climate change and the world's population both on the rise, it's more difficult than ever to feed everyone.
"Agriculture is both part of the problem and part of the solution to climate change," wrote Sir John Beddington, chair of the Commission on Sustainable Agriculture and Climate Change, in a report released today.
The problem with agriculture is that it significantly contributes to global greenhouse gas emissions. According to the BBC, farming produces approximately one-third of the world's emissions. These emission contributions stem from fossil fuel combustion and the clearing of otherwise forested areas.
Climate change will increase temperature variability and alter the amount and patterns of precipitation. These, among other challenges, will make the process of growing food more difficult in the future.
To address the problem of food security, the Commission on Sustainable Agriculture and Climate Change was charged with clarifying global policy goals in advance of the Rio+20 United Nations Conference on Sustainable Development in Brazil in June.
On the economic front, the commission recommends that the world's richest countries make significant increases in investment in sustainable agriculture in the next decade. This might mean that the world's richest countries would pay out the $20 billion they promised for agricultural development in 2009.
The commission also suggested reducing waste in the food system. They pointed to specific areas where waste reduction could make a difference, including infrastructure, farming practices, processing, distribution and household habits.
Christine Negra, a scientist who coordinated the commission's work told the BBC, "the less we waste food, the less food we have to produce, the less greenhouse gases are emitted."
The full report is available online.