Crutzen, P. J., & Ramanathan, V. (2004). Atmospheric Chemistry and Climate in the Anthropocene. Where are we Heading? In H. J. Schellnhuber, P. J. Crutzen, W. C. Clark, M. Claussen, & H. Held (Eds.), Earth System Analysis for Sustainablility (pp. 265-292). Cambridge, USA: The MIT Press.