One of the latest tactics some global warming alarmists have employed is to compare their activism to struggles of the Civil Rights Era of the 1960s. Actor Edward Norton compared the "symbolic" Earth Hour of March 29 to infamous Selma's "Bloody Sunday" in an appearance on CNN's "Larry King Live," and again on NBC's "Today."

But this time, one of the movement's leaders, former Vice President Al Gore, made a similar comparison. Testifying for before a congressional committee on April 24 in Washington, D.C., Gore rated his activism to that of the civil rights movement.

"I believe this legislation has the moral significance equivalent to that of the civil rights legislation of the 1960's and the Marshall Plan of the late 1940's," Gore said. "I am here today to lend my support to one of the most important pieces of legislation ever introduced in the Congress."