Denver International Airport will have its entrance road rebuilt, despite a rocky approval process that gave new council members a chance to speak up on climate change and automobiles. In an 11-1 vote, the reconstituted Denver City Council on Monday approved a $94 million project to rebuild ramps and interchanges while adding lanes to parts of Peña Boulevard’s final approach to the airport. Airport officials said the project — potentially the first phase of several — was meant to improve the flow of shuttle buses and other vehicles near the airport.