http://news.heartland.org/newspaper-...change-skeptic
Editor’s Note: Patrick Moore, Ph.D., has been a leader in  international environmentalism for more than 40 years. He cofounded  Greenpeace and currently serves as chair of Allow Golden Rice. Moore received the 2014 Speaks Truth to Power Award at the Ninth International Conference on Climate Change, July 8, in Las Vegas. Watch his presentation about this piece at the video player to the left.]
I am skeptical humans are the main cause of climate change and that it  will be catastrophic in the near future. There is no scientific proof of  this hypothesis, yet we are told “the debate is over” and “the science  is settled.”
My skepticism begins with the believers’ certainty they can predict the  global climate with a computer model. The entire basis for the doomsday  climate change scenario is the hypothesis increased atmospheric carbon  dioxide due to fossil fuel emissions will heat the Earth to unlivable  temperatures.
In fact, the Earth has been warming very gradually for 300 years, since  the Little Ice Age ended, long before heavy use of fossil fuels. Prior  to the Little Ice Age, during the Medieval Warm Period, Vikings  colonized Greenland and Newfoundland, when it was warmer there than  today. And during Roman times, it was warmer, long before fossil fuels  revolutionized civilization.
The idea it would be catastrophic if carbon dioxide were to increase and  average global temperature were to rise a few degrees is preposterous.
Recently, the Intergovernmental Panel on Climate Change (IPCC) announced  for the umpteenth time we are doomed unless we reduce carbon-dioxide  emissions to zero. Effectively this means either reducing the population  to zero, or going back 10,000 years before humans began clearing  forests for agriculture. This proposed cure is far worse than adapting  to a warmer world, if it actually comes about
IPCC Conflict of Interest
 By its constitution, the IPCC has a hopeless conflict of interest.  Its mandate is to consider only the human causes of global warming, not  the many natural causes changing the climate for billions of years. We  don’t understand the natural causes of climate change any more than we  know if humans are part of the cause at present. If the IPCC did not  find humans were the cause of warming, or if it found warming would be  more positive than negative, there would be no need for the IPCC under  its present mandate. To survive, it must find on the side of the  apocalypse.
The IPCC should either have its mandate expanded to include all causes of climate change, or it should be dismantled.
 
Political Powerhouse
Climate change has become a powerful political force for many reasons.   First, it is universal; we are told everything on Earth is threatened.  Second, it invokes the two most powerful human motivators: fear and  guilt. We fear driving our car will kill our grandchildren, and we feel  guilty for doing it.
Third, there is a powerful convergence of interests among key elites  that support the climate “narrative.” Environmentalists spread fear and  raise donations; politicians appear to be saving the Earth from doom;  the media has a field day with sensation and conflict; science  institutions raise billions in grants, create whole new departments, and  stoke a feeding frenzy of scary scenarios; business wants to look  green, and get huge public subsidies for projects that would otherwise  be economic losers, such as wind farms and solar arrays. 
Fourth, the  Left sees climate change as a perfect means to redistribute wealth from  industrial countries to the developing world and the UN bureaucracy.
So we are told carbon dioxide is a “toxic” “pollutant” that must be  curtailed, when in fact it is a colorless, odorless, tasteless, gas and  the most important food for life on earth. 
Without carbon dioxide above  150 parts per million, all plants would die.
Human Emissions Saved Planet
Over the past 150 million years, carbon dioxide had been drawn down  steadily (by plants) from about 3,000 parts per million to about 280  parts per million before the Industrial Revolution. If this trend  continued, the carbon dioxide level would have become too low to support  life on Earth. Human fossil fuel use and clearing land for crops have  boosted carbon dioxide from its lowest level in the history of the Earth  back to 400 parts per million today
At 400 parts per million, all our food crops, forests, and natural  ecosystems are still on a starvation diet for carbon dioxide. The  optimum level of carbon dioxide for plant growth, given enough water and  nutrients, is about 1,500 parts per million, nearly four times higher  than today. Greenhouse growers inject carbon-dioxide to increase yields.  Farms and forests will produce more if carbon-dioxide keeps rising.
We have no proof increased carbon dioxide is responsible for the earth’s  slight warming over the past 300 years. There has been no significant  warming for 18 years while we have emitted 25 per cent of all the carbon  dioxide ever emitted. Carbon dioxide is vital for life on Earth and  plants would like more of it. Which should we emphasize to our children?
Celebrate Carbon Dioxide
The IPCC’s followers have given us a vision of a world dying because of  carbon-dioxide emissions. I say the Earth would be a lot deader with no  carbon dioxide, and more of it will be a very positive factor in feeding  the world. Let’s celebrate carbon dioxide.
Patrick Moore (pmoore@allowgoldenricenow.org) was a cofounder and leader of Greenpeace for 15 years. He is now chair and spokesman for Allow Golden Rice.