When it comes to ..., some think ...
There is a public debate today that ...
A is a common way of ..., but is it a wise one?
Recently the problem has been brought into focus.
Now there is a growing awareness that...
It is time we explore the truth of ...
Nowhere in history has the issue been more visible...
... but that is only part of the history.
Another equally important aspect is ...
A is but one of the many effects. Another is ...
Besides, other reasons are...
Just imagine what would be like if...
It is reasonable to expect...
It is not surprising that...
For example (instance),...
... such as A, B, C and so on (so forth)
A good case in point is...
A particular example for this is...
