I'll turn to Malcolm, who's really the expert around this.
I think there's been good progress across departments in how we proceed, but I should highlight that the COVID context has, for many companies and governments as well, reduced emissions as a result of reduced activity. This is part of the improvement in the last two years, but there was steady improvement before.
Malcolm, as you're the expert in the area, maybe you want to comment on the progress that's been made and your confidence that we're tracking to stay above the 40% target by 2025.