If governments wish to encourage investors to finance climate change and green growth projects in future, clear and consistent policies over a long period of time are needed – most notably a clear signal in terms of carbon pricing (. via emissions targets). For example, as Hamilton (2009) points out, renewable energy policy and regulatory framework is the critical element influencing where capital is deployed. Such policy needs to be „loud‟ (. with incentives which make a difference to the bottom line), „long‟ (sustained for a period that reflects financing horizons) and „legal‟ (with clearly established regulatory ). .