There remains some debate as to whether the causes of teenage rebellion are completely natural or necessary.

However, there remains considerable debate over whether the system offers a measurable increase in safety performance.

There remains much debate about the drug's usefulness, doctors said.

But the debate over how to judge the soldiers remains.

There remains some debate over the relative virtues of the knapsack for city living.

But much debate remains over how to use the information.

A historical debate still remains as to who actually discovered the pure form of the element first.

There remains a debate over whether the right to aboriginal self-government is included within section 35.

There remains some debate as to whether it was a misunderstanding or a deliberate act.

Much debate can remain as to what a given medium best lends itself to.