Readings:

1) For an easy read primer on clouds and condensation, try:
Goody and Walker (1972) Atmospheres, Chapter 5
This book is very lucid on basics although somewhat out-of-date on planetary details

2) In Week 2 of the course, we will be covering condensates on planets, including "methane rain" on Titan. Background reading:

Lunine and Atreya (2008) Methane cycle on Titan. Nature Geosciences.

3) A nice short article on IR radiative transfer theory is as follows:

Ray T. Pierrehumbert (2011) Infrared radiation and planetary temperature, Physics Today, 64, 33-38
Plus: a later clarification on the ozone band at 9.7 micron  and follow-up correspondence on radiative forcing.

4) A recent paper discussing the runaway greenhouse effect in 1-D radiative-convective climate is Goldblatt et al. (2013). Low simulated radiation limit for runaway
greenhouse climates. To contrast, there is a paper using 3-D model: Leconte et al. (2013) Increased insolation threshold for runaway greenhouse processes..