Environment Minister John Griffiths outlined his intention to publish a white paper setting out his proposals for a new sustainable development bill on 27 November 2012.
The new bill will place a duty on the government and other public service organisations to strengthen the framework for sustainable development in Wales.
He made the comments whilst leading the debate on the annual report on sustainable development on 27 November 2012.
The annual report covers the period of April 2011 to March 2012 and is intended to consider the economic, social and environmental impacts of all of the Welsh government's decisions.
According to the report, the latest figures, which were released in August, show that Wales has increased its economic output, driven up its renewable energy production, recycled and composted more of its waste and improved the way in which it manages water.
"For Wales, the picture is positive," the minister told the chamber.
Although he was happy with many of the indicators he stressed that "we need a clear sense of progress".
Liberal Democrat spokesperson William Powell AM called on the minister to use international case studies "to ensure that Wales does not fall behind other European countries, and indeed the world".
Conservative AM Russell George called on the government to act upon the weaknesses in the report.
The motion as amended was agreed.
Read this in Welsh.