 asset owners and incumbent regulatory frameworks and again poorly managed social transitions and also if climate impacts start getting really expensive they will distract from actually solving the problem. So these are the forces we have to balance and diplomacy is key for balancing those forces because they are a mixture of national and international forces to go forward. It's not, some people think about climate change, if we peak in 2020 we'll somehow roll down a hill to success. That's not how it's going to work. It's going to be a constant