But he added that "alternative development alone" was not effective.

At present there are no plans for any alternative development at the site.

He estimated that alternative development would require an additional amount of less than $250 million a year over the next decade.

He insisted that people are taking alternative development, as his strategy is called, more seriously.

In 1964, the park was assessed financially and then moved onto the next phase; this resulted in three alternative developments.

American officials are saying that aid for alternative development would flow only to areas where the Government has established control.

But even its supporters admit that, at present, alternative development is not enough.

As rapporteur, my main concern - shared by the committee - was to put the concept of alternative development at the top of the agenda.

Only when all this is in place will the concept of alternative development actually work.

Michigan's requirement for 10 percent renewable energy by 2015 has led to increased alternative development in the state since it was passed in 2008.