Climate engineering – both in terms of CO2 removal and management of incoming solar radiation – offers an opportunity to complement traditional mitigation strategies in the strive to limit climate change at low levels. Already, integrated assessment models have shown the importance of negative emissions to attain stringent climate objective. The Paris agreement has further reinforced the need to look into low climate scenarios. However, climate engineering deployment at large scale remain highly uncertain and controversial.

This workshop aims at discussing technological, economic and environmental issues related to large scale deployment of climate engineering. The main goal is to help improving the representation of climate engineering in the integrated assessment studies of climate, energy and the economy. Key questions in need of an answer.

The workshop is structured in two days, with two separate objectives. The first day is dedicated to discussing carbon dioxide removal technologies, with a specific focus on non-biological CDR. Bio CDR strategies have been substantially debated and modeled, but less attention has been given to alternative CDR options.   The second day will focus on solar radiation management (SRM).  SRM offers an altogether different strategy to deal with climate change, one which is frowned with uncertainties, and which has only partly been investigated in integrated studies.

Each session will aim at answering the following key questions:  what are the technology requirements for climate engineering? What are the economics? Which policies should be put into place to regulate it? How to account for risks and uncertainties? What are the implications for international climate policy?