But al-Maliki and President Bush last week agreed to a "general time horizon for meeting aspirational goals" on troops cuts.

CNN: Obama finds 'consensus' in Iraq for U.S. troop withdrawal

In a conversation Thursday, President Bush and Iraq Prime Minister Nouri al-Maliki agreed that the accord should include "a general time horizon for meeting aspirational goals, such as the resumption of Iraqi security control in their cities and provinces and the further reduction of U.S. combat forces from Iraq, " a White House statement said.

NPR: U.S., Iraq Agree On 'Time Horizon' For Withdrawal

Some of the goals outlined are specific, others more aspirational.

BBC: Australia PM Julia Gillard outlines Asia manifesto

These should be action oriented, aspirational and measurable, so that they complement the Millennium Development Goals.

CNN: Was Rio+20 a failure of political leadership?