Journal-Sentinel: Now that they control both houses of Congress, Republicans are eager to show that they have good ideas and can govern the nation responsibly. Will they take this opportunity to tackle the growing threat of global warming? The question bears close watching. In his State of the Union address, President Barack Obama noted that 2014 was the Earth's hottest year in recorded history. "One year doesn't make a trend," he explained, "but this does: 14 of the 15 warmest years on record have all fallen in...