What is one key focus of the Millennium Ecosystem Assessment?

The Millennium Ecosystem Assessment primarily focuses on assessing the consequences of ecosystem change on human well-being. This extensive evaluation was initiated to understand how changes in ecosystem services impact various aspects of human life, including health, security, and livelihoods. By examining the interactions between ecosystems and human well-being, the assessment aims to inform policy decisions that promote sustainable management of the world's ecosystems. This focus reflects a growing recognition that the health of ecosystems is directly tied to the quality of life for humans, emphasizing the importance of sustainable practices that balance ecological integrity with human needs.

The other options, while relevant to various fields, do not encapsulate the core mission of the Millennium Ecosystem Assessment. Strengthening trade agreements relates to economic considerations, encouraging urban development focuses on urban planning issues, and developing new agricultural practices pertains to agronomy and food production. These areas may indirectly involve aspects of ecosystem change, but they do not directly address the fundamental focus of the assessment on the linkage between ecosystems and human well-being.