1Solomon, S., G. K. Plattner, and P. F. Friedlingsteind. 2009. Irreversible climate change due to carbon dioxide emissions. Proceedings of the National Academy of Sciences 106:1704-1709.

2Morello, L. 2009. Scientists seek “Plan B” for fighting climate change. New York Times 2Nov http://www.nytimes.com/cwire/2009/11/02/02climatewire-scientists-seek-plan-b-for-fighting-climate-16296.html .

3Environmental Research Letters. 2009. Volume 4, Number 4 Oct-Dec http://www.iop.org/EJ/toc/1748-9326/4/4..

4Prinn, R. 2009. As quoted in Morello, L. 2009. Scientists seek “Plan B” for fighting climate change. New York Times 2Nov http://www.nytimes.com/cwire/2009/11/02/02climatewire-scientists-seek-plan-b-for-fighting-climate-16296.html .

5WBGU (German Advisory Council on Global Change) 2004. Solving the Climate Dilemma: The Budget Approach. Special Report, Berlin, Germany, p.14.

6Myers, S. S. 2009. Global Environmental Change: The Threat to Human Health, Report 181. WorldWatch, Washington, DC.

7Diamond, J. 2005. Collapse: How Societies Choose to Fail or Succeed. Penguin Group, New York.

8Tierney, J. 2009. As quoted in Ehrlich, P. R. 2009. Ecoethics: now central to all ethics. Bioethical Inquiry 6:417–436.

9Tierney, J. 2008. Science adviser’s unsustainable bet (and mine). New York Times  23Dec http://tierneylab.blogs.nytimes.com/2008/12/23/science-advisors-unsustainable-bet-and-mine/ .

10Bonhoeffer, D. 2003.  As quoted in Cone, J. H. 2003. Theology’s great sin: silence in the face of white supremacy. Pages 1-15 in  Soul Work; Anti-Racist Theologies in Dialogue. M. Bowers-Wheatley and N. Palmer Jones, ed. Skinner House Books, Boston.

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