A phenomenon as complex as climate change cannot be reduced to simple propositions or simplistic policy prescriptions. Even when there is agreement on some underlying facts, there may be a diversity of views about what to do in response to those facts, and the problem is compounded when uncertainty exists or when basic facts are contested for partisan reasons. But while there may indeed be a localized and highly charged political component to the public discussion, more remarkable is the fact that at a time when nations have difficulty reaching agreement on many important issues, the governments of nearly every country on earth have reached political consensus on a joint framework, in the Paris accord, to respond to climate change in a manner that is anticipated to evolve over time as experience accumulates. More than a century ago, ‘Abdu’l-Bahá referred to “unity of thought in world undertakings, the consummation of which will erelong be witnessed.” The recently adopted international agreement on climate change, irrespective of any shortcomings and limitations it may have, offers another noteworthy demonstration of that development anticipated by ‘Abdu’l-Bahá. The agreement represents a starting point for constructive thought and action that can be refined or revised on the basis of experience and new findings over time.