De or het koolstofemissie?

The correct Dutch article is:

de koolstofemissie

Rule Words ending in -tie and -sie: almost always de. See the rule

How to use koolstofemissie

the koolstofemissiede koolstofemissie
this koolstofemissiedeze koolstofemissie
that koolstofemissiedie koolstofemissie
our koolstofemissieonze koolstofemissie
your koolstofemissiejouw koolstofemissie
every koolstofemissieelke koolstofemissie
which koolstofemissie?welke koolstofemissie?
a big koolstofemissie / the big koolstofemissieeen grote koolstofemissie, de grote koolstofemissie