Ahead of the climate talks in Paris, Unilever announced plans to be carbon positive from its operations by 2030. Elsewhere, there was more consolidation in the US food sector, with Pinnacle Foods moving for Boulder Brands. Tyson Foods, Post Holdings and Greencore all had annual results out in the week. Maple Leaf Foods outlined plans to "streamline" its business, which is set to lead to the loss of 400 staff. Here is the week in quotes.