The US food sector saw another major takeover this week with Pinnacle Foods agreeing to pay US$975m for free-from group Boulder Brands. The country could soon see another, with Thai Union Group saying there are "serious" buyers lined up for Chicken of the Sea - a business it is willing to sell to secure another US asset, Bumble Bee Foods. And, ahead of the climate change talks in Paris next week, Unilever announced plans for its operations to be "carbon positive" in 15 years.