"With geoengineering, I’m always very concerned because if I want to do an experiment on human subjects, as a university researcher, I have to go in front of a review board and convince them that all of my human subjects have given informed consent to participate in this experiment. And with a lot of geo-engineering experiments, I worry about how that consent is going to be obtained."

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Peters, Glen P.; Geden, Oliver (2017): Catalysing a political shift from low to negative carbon. In Nature Climate change 4, p. 850. DOI: 10.1038/nclimate3369.

"Policymakers are beginning to understand the scale of carbon dioxide removal that is required to keep global warming “well below 2 °C”. This understanding must now be translated into policies that give business the incentive to research, develop and deploy the required technologies."

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"An ocean thermal energy conversion (OTEC) resource map like the one above, where the palate ranges from red to yellow to indicate ocean surface temperatures ranging from 28^oC or above down to 22^oC is essentially a map of the impact of global warming. Recognition of the problem is the first step towards its solution and from there you can ascertain where to allocate the resources necessary to realise your solution."

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Parson, Edward A. (2017): Opinion. Climate policymakers and assessments must get serious about climate engineering. In PNAS 4, p. 201713456. DOI: 10.1073/pnas.1713456114.

"Furthermore, the large-scale use of CE is probably essential for achieving prudent climate-change limits, including the Paris target of limiting the average global temperature rise to 1.5–2.0 °C. This conclusion appears unavoidable based on the current level of global greenhouse-gas emissions and the long time-constants of the climate system and the human energy system (e.g., the long atmospheric lifetime of carbon dioxide and the time required for large-scale deployment of new technologies). CE may also enable integrated climate-response strategies that reduce risks in ways not otherwise achievable."

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