Climatologist Dr. John Christy: Climate Change Overview in Six Slides

The Hockey Schtick

• Popular scare stories that weather extremes – hurricanes, tornadoes, droughts, floods — are getting worse are not based on fact.
• In the U.S., high temperature records are not becoming more numerous.
• Climate models significantly overestimated warming during the past 15 years.
• Even if climate models were correct, a 50% reduction in U.S. CO2 emissions by 2050 would avert only 0.07°C of warming by 2100.
• If a policy is not economically sustainable, it’s not politically sustainable.
• The climate change impact of enhancing CO2 concentrations has so far been small compared to the public health and biospheric benefits provided by affordable, carbon-based energy.