text: Recently, the so-called "greenhouse effect" has itself come under increasing attack by a phalanx of scientific experts, including Dr. Gerhard Gerlich and Dr. Ralf D. Tscheuschner, professor Nasif Nahle, applied mathematician Claes Johnson, former radio-chemist Alan Siddons, analytical chemist Hans Schreuder, combustion research scientist Martin Hertzberg, and engineer Heinz Thieme.