A control unit for a climate control system for a vehicle, comprising; a monitoring module arranged to monitor at least one demand representative of an environmental parameter change within the vehicle and/or at least one active user input relating to an environmental parameter within the vehicle; a storage means storing a control policy for configuring at least one climate control element; a feedback module configured to receive the at least one demand from the monitoring module and to receive a simulated control policy from a simulation module; wherein the feedback module is configured to update the control policy, based on the simulated control policy, in response to receiving the at least one demand; and an implementation module for controlling said at least one climate control element in accordance with said control policy.