But environmental progress requires not only a transformation of political style.

Real progress requires a fundamental transformation in our social arrangements.

But progress on an issue this difficult requires hard compromises.

It is clear that progress will require us to direct available resources to the populations and geographic areas with the most urgent needs.

But continued progress will require a continued commitment from member nations.

There was no room to maneuver and further progress would require another breakthrough.

Their progress requires the District to be creative and maximize educational opportunities.

Finally, progress requires us to step into the unknown, so that the fear of change in one generation doesn't hold back the next.

Presumably, progress in this direction will require some pressure from abroad.

On some fronts progress may require money, even if the will and the expertise are there.