it's a political problem. that's what makes the un secretary—general�*s speech so significant. we finally have a call to action that focuses attention notjust on energy policy, but also on political power. balances the need for rolling out clean energy technologies with the imperative of overthrowing the political power. to imperative of overthrowing the political power.— political power. to be fair, the head _ political power. to be fair, the head of— political power. to be fair, the head of the _ political power. to be fair, the head of the un - political power. to be fair, the head of the un has - political power. to be fair, l the head of the un has been making these very strong statements and calls for years. we've been covering it here on bbc news. the question is what will happen this time was mike will happen this time was mike will the oil giants say, yeah, sure, we will stop advertising? 0bviously, sure, we will stop advertising? obviously, it's above my pay grade to speculate about this. also, certainly to speculate as to how companies will respond. but i think the bottom line is that pr farms and media companies have been aiding and