This paper examines five methods that can be adopted when making decisions concerning long-lived investments and accounting for the impacts of climate change. The five methods are examined: (i) selecting “no-regret” strategies that yield benefits even in absence of climate change; (ii) favoring reversible and flexible options; (iii) buying “safety margins” in new investments; (iv) promoting soft adaptation strategies, including long-term prospective; and (v) reducing decision time horizons.