This transcript has been automatically generated and may not be 100% accurate.

... BdB ... the first of all ... the fuel system that would transport him a Keystone XL ... it is is named for the Gulf Coast and many of those refineries smarty converted to heavy crude ... you will hear of environmental groups and the ... talk of load a ... average a barrel of crude and that the ... oil sands are more ... intense greenhouse gas intensive than the average ... oh one on displacing an average ... a barrel of crude were displacing a heavy ... barrel of crude is coming in from Venice well our Nigeria the Middle East ... it's a really you have to compare ... the heavy crude to the heavy crude ... and the oil industry can as to the significance of oil sands industry of decreasing the amount of ... emissions associated with producing the barrel of oil sold twenty six percent in the last number of years ... sharing technologies ... to improve those ... so if you look at the barrel were displacing ... in the emissions associated with it is is doing this ... I ... and not understand why that not seem to get across town ... if you want to get ... her to just another close one in anticipation ... it's a it's a complicated one ... when the nights ... it's been a long time and up ... you can deeply affect employment was somewhat ... so what did it ... but ... I think you have to put it in the right context and ... the kittens this ... endless debates about numbers and think so when you try and ... put it in the right context ... the emissions are generated call away from the production process through the refinery ... transportation to the cast is then into your vehicle ... gets burned in your internal combustion engine ... where emissions are also released ... in an interview ... so the question is what what are the boundaries of this argument ... here is ... how much carbon is released ... from ... the oil sands site of the well head open on it's it's ... to the pipeline ... is that the refinery ... of the refinery gate to the US to convert your car ... if you measure it ... from ... the source ... all way to vehicle ... an SEO oil sands versus stay ... up late oil from smaller part in North America ... you'll find that the difference is actually not that much ... probably compass ... to me ... the dual sense of the slightly more carbon tax ... it was ... was that it is because the overwhelming amount in the sky ... from Dr ... seventy percent ... so if you measure ... from ... the sores refinery ... and tell you that ... the oil senses probably two to three times more ... it's ... it's about ... from seventy to eighty kilograms of CEO to per ... barrel ... where is the widest oils are coming out of the best players in the US is over ... would be closer to twenty five to thirty ... significant difference ... but the question as well ... I guess ethically or is that they owe ... trying to really make a difference ... in this world oh ... reducing emissions ... instead of arguing numbers like where is the real problem ... so save yourself ... because some people say ... for the oil sands ... in fact forget also that this was just the debate that summer cannot ... no folks it ... well okay ... aam ... but toll to seventy three cents was a Statoil of the emissions commodity or feel ... so ... if you say don't invest in fossil fuel component us all ... don't invest in some ... because to be true to yourself that sentiment the support ... don't invest in him ... so ... this is very complex ... question I would say to use that ... in the oil fields to the refinery ... absolutely the Royals ... for more than this ... this from them they are making strides to bring it down ... I was started ... suggested that technically not care ... as it is like oil hoping for ... a ... of but can you do better from the wealth of the wheels school is the system's it out with the US ... so ... effectively were were headed with this I can tell you that were were headed with this is the envy ... rules of energy you're public and see what you've seen in the food industry ... when you're on how well companies ... might have to disclose life of a label on the impact that ... this is how much water we use this is much due to its point that up ... and people to make the crisis when ... investors are consumers one ... the forever ... what the problem ... because if you're pointing fingers at the oil industry in St ... yes they have to writes ... yet to be true to yourself and say ok well ... you know without a real one range ... that when oil sands ... and a light oil ... seventy five to two dollars and eighty kilograms ... versus twenty five ... yet a site ... like you can buy it ... a big SUV versus a very small ... St once in ... terms of efficiency ... so you wanna be ... up ... point about this argument ... and you'd say ... for example ... that oil Oil sentence which some people I could write ... so I would say for open ... what's bad all vehicles that are over ... three thousand pounds ... in ... most cities ... early into law ... one negative piece in the world ... two ...