jy1991

Organic farming avoids the use of chemical pesticides and manmade fertilizers. Supporters say organic farming is better for the environment than conventional methods. But studies have shown that organic farming generally produces less food per hectare.有机农业避免了使用化学农药和人工化肥。支持者表示，有机农业比传统农业方式更环保。但研究表明，有机农业每公顷产量通常更低。
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That lower yield means feeding the world organically would require more land. But good farmland is limited. And scientists say deforestation from the clearing of land for agriculture is already a problem for climate change.产量低意味着用有机食物养活世界人口需要更多土地。但良田有限。而且科学家表示，清理农业用地导致的滥砍滥伐已经成为影响气候变化的一大问题。