Pretty much Shell is an European energy company, and due to that they are looking at climate change, and wanting to lead the transition. Mostly because they see that is the way the world is going to go, and they want to be in front and are being pretty open about it. They have been partnering with environmental organisations to increase environmental regulations in the US, and having made early investments, will likely come out ahead of Exxon and others if / when regulations get tightened.