The December issue of News and Analysis presents articles and comments on: preventing toxic lead exposure through drinking water using point-of-use-filtration, reducing lung cancer risk associated with inhaling radon through mandatory radon-resistent new construction in building codes, and developments in standing for public lands and natural resources litigation. The issue also includes a transcript from a webinar hosted by ELI in September that highlighted the role of private institutions in climate change mitigation and offered methods for developing and evaluating successful private climate initiatives.