A 2001 United Nations report says population growth is "the main force driving increases in agricultural demand" but "most recent expert assessments are cautiously optimistic about the ability of global food production to keep up with demand for the foreseeable future (that is to say, until approximately 2030 or 2050)", assuming declining population growth rates.
2001年联合国报告称人口增长是“农业需求增加的主要驱动力”，但在假定人口增速放缓情况下，“对全球粮食生产能力能否满足可预见未来的需求（即至2030到2050年左右），专家最新评估持谨慎乐观态度”。