Final answer:
The UN set a deadline for the Sustainable Development Goals to create urgency, encourage progress, and ensure accountability and resource allocation for achieving these objectives by 2030.
Step-by-step explanation:
The United Nations (UN) established a deadline for the Sustainable Development Goals (SDGs) as part of the "2030 Agenda for Sustainable Development" to create urgency and a clear target for member states and other stakeholders. This date was chosen to encourage rapid action and provide a framework for tracking progress on initiatives intended to end poverty, protect the planet, and improve lives globally. ECOSOC, a central UN organ, helps to coordinate efforts towards these goals and collects data to measure global progress. The deadlines also promote accountability and facilitate the allocation of resources towards the achievement of these shared objectives. Without a set deadline, it might be challenging to maintain momentum and assess the effectiveness of various strategies over time.