The Environmental Audit Committee is rather like the Democratic Republic of the Congo, being entirely uninterested in auditing anything. It's an environmentalist talking shop with greens taking "evidence" from greens and concluding that more greenery is required to green the planet. Or something like that.
Last month they took evidence from James Hansen as part of their inquiry into carbon budgets. This was presumably just because Hansen happened to be in town rather than because of any great insights he might be able to give on UK energy policy.
The uncorrected transcript is here.