On top of 5.1, the supplier's leadership tells every member about its lower-carbon options, and promotes them, while work is still at an early stage; fosters carbon management and low-carbon technology among its own suppliers and its industry peers; volunteers carbon information that is clear, complete and transparent to the rest of the chain; and presses its clients, the designers and the constructors for lower-carbon answers.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.