Policymakers need information not only on global and regional climate trends, but also on their expected effect on local weather and local communities. The uncertainty of climate trends and the need to incorporate the new information that is becoming available demand that policymaking be responsive and relevant to the needs of people through short-term actions which are coherent with longer-term sustainable development objectives and actions. Incorporating uncertainty within policy action day by day through iterative and adaptive policy processes helps to reduce the risks of lock-in solutions and path dependency.