Sure. Thank you.
First, I completely agree with Dave's comments about the need to have that balance. There are lots of examples whereby projects or activities are recognized to have a more significant impact over time than what was originally approved or thought of. You're seeing adaptive management approaches and changes to legislation and regulation.
Certainly from a Shell perspective, we're about driving continuous performance improvement in our environmental performance, as we are with the rest of our business. So if we find defects or things we see that are not accessible, it's about driving that performance, looking at ways to mitigate it, and potentially looking for ways to offset it.
I agree that we have to find that larger balance and we have to have those logical decisions about what are acceptable impacts at the very front end of these kinds of large projects. The change in regulation is really about having a national conservation framework that would allow us to achieve those objectives over a broad context.