But the MA finds that excessive nutrient loading of ecosystems is one of the major drivers today and will grow significantly worse in the coming decades unless action is taken.

• 但是“千年评估”发现,生态系统养分过度富集是当今生态系统变化的一个主要驱动力,如果不立即采取行动,生态系统将在今后几十年中出现严重恶化。