Next week on The Exchange, we begin with a discussion of President Obama's recently announced plan for tackling climate change -- an approach that includes curbing carbon emissions and fortifying communities against severe weather events, such as storms and droughts. We'll also talk with a roundtable of Granite Staters about the debate in Washington over immigration reform. And we talk with Manchester Police Chief David Mara, as part of the news department's series on crime in the Queen City, starting Monday and running through Labor Day.