Today we use plastic more than any other material in the world.

[diamondcutter]

1. Today we use plastic more than any other material in the world.
2. Today we use more plastic than any other material in the world.

Are these two sentences interchangeable?

 

[Tarheel]

Not exactly. Using something more than other things is not the same as using more of it than other things. Having said that, most people would probably see no difference between the two.

 

[tedmc]

The first is about frequency while the second is about quantity, though the difference is not significant in the two sentences.