Move's going to restrict carbon emissions at first (6)
I believe the answer is:
excite
'move's' is the definition.
(thesaurus)
'going to restrict carbon emissions at first' is the wordplay.
'going' becomes 'exit' (exit is a kind of going**).
'to restrict' indicates putting letters inside.
'carbon' becomes 'c' (C is the chemical symbol for carbon).
'at first' indicates taking the first letters.
The initial letter of 'emissions' is 'e'.
'exit' placed around 'c' is 'excit'.
'excit'+'e'='EXCITE'
(Other definitions for excite that I've seen before include "Arouse, make eager" , "Make (someone) eager" , "Stir up, stimulate" , "Stimulate - arouse" , "Inflame or stimulate" .)