11. The Need for Governance of Climate Geoengineering
- Author:
- Janos Pasztor
- Publication Date:
- 12-2017
- Content Type:
- Journal Article
- Institution:
- Carnegie Council
- Abstract:
- Sooner rather than later, policymakers around the world will need to confront an uncomfortable reality: that despite the best efforts of national governments and thousands of mayors and other civic leaders, we can no longer contain global average temperatures to below 1.5–2 degrees Celsius above preindustrial levels through mitigation of carbon emissions alone. It is widely acknowledged that even if the world stopped all emissions today, there would still be a rise in global temperatures to a level that would stay for hundreds of years (the lifetime of the carbon dioxide already in the atmosphere) before temperatures began to drop, thus constituting a temperature “overshoot.” For many experts the question is no longer whether the world can keep the temperature rise below the goals stipulated in the Paris Agreement, but by how much will the world miss that target and how long will the overshoot last. For many experts the question is no longer whether the world can keep the temperature rise below the goals stipulated in the Paris Agreement, but by how much will the world miss that target and how long will the overshoot last. The acknowledgement of this temperature overshoot—alongside a growing appreciation of its devastating impact on people’s lives, the global economy, and the environment—may mark a new inflection point in our efforts to manage the risks of climate change.1 When you add to this the U.S. president’s announcement in June 2017 that the nation would withdraw from the Paris Agreement, it comes as no surprise that a growing number of scientists are thinking about additional approaches to managing the risks of an overshoot. Perhaps most dramatically, we have seen a resurgent interest in a field that once resided at the fringes of science or on the pages of sci-fi novels, but which is now being taken quite seriously in academic circles: geoengineering. As this interest develops, it is becoming more likely that a group of countries or cities or even one or more wealthy individuals might decide to deploy geoengineering technologies during the coming decades. We need to be ready for any such eventuality; and being ready means considering a host of pressing questions. How would we govern such actors? Who assesses the balance of risks and rewards when deploying geoengineering technologies? What safeguards and what compensation mechanisms need to be built in? If we start deliberately altering global temperatures, who controls the global thermostat? It was to address these questions that the Carnegie Climate Geoengineering Governance Initiative was born: to bring the profoundly complex issues of geoengineering governance and ethics to a much wider audience.2 We are potentially at the dawn of an age of geoengineering. It is time for policymakers to start discussing whether geoengineering is to go forward and, if so, how.
- Topic:
- Climate Change, Environment, Governance, and Geoengineering
- Political Geography:
- Global Focus