He's well aware of the limitations of nuclear energy.
Here's an audio interview with him from 2006.
Note that he mentions nuclear as 1/6 of global electricity generation.
That was true in 2006, now it is only 1/7.
The "nuclear renaissance" is going backwards.
The mp3 file is 30 minutes long, 80kbps, about 17 megabytes.
http://corporatewatchdogmedia.blogspot.com/2006/09/will-nuclear-power-save-us-from-global.htmlWednesday, September 06, 2006
Will Nuclear Power Save Us from Global Warming?
Harvard University Professor and National Commission on Energy Policy Co-Chair John Holdren discusses the role of nuclear power as a potential solution for climate change, identifying four primary problems that would need to be overcome for nukes to be a viable part of an overall greenhouse gas reduction strategy.
Listenposted by Sanford Lewis, Esq. at 12:59 PM