The CRGE was far-sighted in addressing the core problems that could destabilise the relationship between human wellbeing and the environment - notably the temperature and water scarcity problems associated with climate change, associated natural resource degradation, and the lack of capability to adapt - which will eventually cause many people to lose their livelihoods. Other environmental problems, such as soil erosion or the collapse of ecosystem services like crop pollination, could also lead to social dislocation and conflict and drive demand for green responses. Both these people-centred problems and the climate change drivers could reach tipping points - where increasing incidents of disaster or extreme events necessitate a system-wide response.