During our dinner dates in Lisbon on Saturday, October 30, the New York City Chamber of Beautiful Business gathered in a Tribeca loft for a special kind of diet: The Climate Diet, featuring author and New York Times contributor Paul Greenberg, whose latest book offers a practical, accessible guide to living in a way that is friendlier to the planet, from what we eat and how we live to how to lobby businesses and elected officials to do the right thing.