More generally, beyond climate change, that's a very important question. One of the concerns we've had for a number of years is how well departments are in fact telling parliamentarians how well they are achieving those commitments. There is information provided by some departments in parliamentary documents--the estimates documents, for example--but the quality varies considerably.
Something that we often urge parliamentary committees to do is to pose exactly the question you've posed to the departments, to get a clear reporting on how well they've met those commitments.