The Lawrence Livermore National Laboratory (LLNL) is a federally funded research and development center located in Livermore, California. Their mission, in part, is to respond with vision, quality, integrity, and technical excellence to scientific issues of national importance. One such issue, which is tough to dispute, is the changing climate. The top-rate researchers at LLNL created a new climate model by comparing 20 different computer models to satellite observations. They found that tropospheric and stratospheric temperature changes are clearly related to human activities.