Howard Cork Hayden, Emeritus Physics Professor, University of Connecticut: At no time during the last billion years has the climate not been changing. Therefore, it is trivially useless to claim that the climate is changing. It is a serious offense for man-made climate change alarmists to call anyone a CLIMATE DENIER or CLIMATE CHANGE DENIER. The atmosphere has had, at times in the past, many multiples of the present concentration of carbon dioxide. The case for nuclear power is very strong. Don't dilute the strength of the case with weak arguments, like that of "climate change ( nee Global Warming).