MISSOULA, Mont. — President Obama will announce a series of climate change initiatives on Wednesday. The actions, involving a variety of federal agencies, were among the recommendations of the president’s State, Local and Tribal Leaders Task Force on Climate Preparedness, a group of 26 officials who have worked since November to develop the proposals. One of the projects involves shoring up the power supply during climate catastrophes, and the Department of Agriculture on Wednesday will award $236.3 million. The United States Geological Survey and other federal agencies will spend $13.1 million to develop advanced three-dimensional mapping data. The new initiatives...