Rancho Bernardo, CA Today it was announced that the Environmental Protection Agency is releasing a new software toolkit for use in evaluating weather changes due to climate change based upon projections of an intergovernmental Panel on Climate Change.  It is not known how local or regional regulators will receive the tool, nor is it known if they will implement it.  Many storm water professionals believe that the recent updates from the Region 9 Water Board has already taken much of this into consideration when they issued their new Storm Water rules in May  of 2013.  It remains to be seen what if any affects the new toolkit will have on local regulations. A key component of the EPA Toolkit is called the National Stormwater Calculator (SWC).  It is designed to be used by site developers and engineers to evaluate more options for stormwater pollution prevention.  There will likely be more news on this topic to follow.