So last night I'm reading the book Weather Makers: The History and Future Impact of Climate Change by Tim Flannery, and I feel an overwhelming urge to turn out the lights.
If it were a smaller book I would make it my Public Transport Book, i.e. the book I bring to read on the train or tube, which would at least mean I could read it with a slightly superior air instead of furtively, under the covers.
Maybe I'll buy some carbon transfers. How many solar projects in Namibia should I fund for two hours of reading with the lights on?