Here is the chart that summarizes the comparisons. Notice the ranges in the brackets. Those are the range across which the values could fall depending upon location and other variable factors
Nuclear power is about 10-20 times better for CO2 than coal or natural gas.
Nuclear power is better than photovoltaics for CO2 and three times worse than wind and four times worse than hydroelectric.
Hat tip to Wesupportlee.blogspot.com for pointing out this source and collecting several interesting articles from around the blogosphere.
As usual a high quality article from Kirk Sorensen at thoriumenergy.blogspot.com. Kirk provides an indication of how much of California has seismic issues where a nuclear reactor would not be placed. Kirk also reiterates his plan for submarine placement of nuclear reactors to enable reactors to tide out any earthquake.
Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
Known for identifying cutting edge technologies, he is currently a Co-Founder of a startup and fundraiser for high potential early-stage companies. He is the Head of Research for Allocations for deep technology investments and an Angel Investor at Space Angels.
A frequent speaker at corporations, he has been a TEDx speaker, a Singularity University speaker and guest at numerous interviews for radio and podcasts. He is open to public speaking and advising engagements.