A German scientist is raising serious questions as to whether government data-keepers have been tampering with scientific data to conjure up warming trends where none exist. "It is important to understand whether CO2 truly causes climate change," said Professor Dr. Friedrich-Karl Ewert, "We rely entirely on simulation models.  Reality looks very different from simulations." Dr. Ewert is professor emeritus of geophysics at the University of Paderborn.  He spoke at a scientific conference put on by EIKE, the European Institute for Climate and Energy in Essen, Germany that was co-sponsored by CFACT and the Heartland Institute. Ewert conducted exhaustive research comparing climate [...]