NYT: Bill McKibben, an environmental campaigner from Vermont with a flair for showmanship, was rebuffed Friday morning in his effort to get the White House to reinstall one of the solar panels that President Jimmy Carter had placed on the White House roof. Associated Press The environmental activist Bill McKibben and others signed a solar panel on Tuesday in Unity, Me., before heading to Washington to offer it to the White House. They were removed by the Reagan administration, and …