ABC 20/20 listed the top 7 threats to life on Earth as
global warming, disease epidemics, nuclear war, asteroid impact, super volcanoes, black hole collision, and gamma ray burst. It used the term Climate change deniers and compared them to holocaust deniers and those who denied the health hazards of cigarettes.
Where are those people? Can you show me one person who denies that climate change ever occurs? There are those who are skeptical that CO2 emission limits will avert a catastrophe, but no one doubts change. Many embrace change. Some say that global warming will be a net benefit for agriculture.