Sounds like the case of a paper being due and him pulling something together the night before. :)

You do realise that only 'important' papers would by written by the CSA. I doubt this would have qualified. It reads to me like the work of a bag carrier pulling together some existing data to answer a posed question. CSA probably read over it, but wouldn't have given the matter any thought.

If you want to reply to him, I'd suggest:

a) don't tell him he's an idiot. Point out 'factual inaccuracies in the report' and 'inconsistent policy statements' - it gets much more notice.

b) see if you can find a route direct, not via his front office. Otherwise probably the first person to see it will be the person who wrote the document, and he won't pass it on.

c) emphasise how efforts to mitigate the risk of peak oil are 'compatible and supportive' of efforts to reduce climate change. From a reading of this political capital has been staked in supporting Brown in pushing a climate change agenda, and he doesn't want anything confusing it. To get him onside, it has to support his main policy aim.