Carbon dioxide is one of the main causes of global warming.

This factory has significantly reduced its carbon dioxide emissions.

The factory is emitting a large amount of carbon dioxide.

My father works at that factory.

He read a mass of books.

He read a large amount of books.

I will participate in the factory coop next week.

My father works at a paper mill.

My father works at a filature.

That abandoned factory was once full of vitality.