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What is the global challenge in climate science?

The Global Challenge

What follows is an email sent November 4, 2019, to more than 8,000 leaders in science, politics, and the energy business, 5,000 reporters, and nearly 18,000 others concerned with climate change. In this email I am challenging anyone in the world to find any significant error on the single web page that could change my fundamental and most unexpected conclusion that greenhouse-warming theory is not only mistaken, it is not even physically possible.

Press release describing the Global Challenge on November 4, 2019.

Subject: We can burn fossil fuels safely—a most unexpected conclusion based on a profound revolution in the physics of heat

The world has warmed nearly two degrees Fahrenheit since 1970. A profound revolution in the physics of heat, however, shows unequivocally that greenhouse gases cannot physically be the cause. They do not absorb enough heat to warm Earth. The scientific evidence is remarkably clear in hindsight.

Major warming in future decades predicted by computer models based on greenhouse-warming theory cannot and will not happen.

We can burn fossil fuels safely provided we minimize air pollution. Major greenhouse gases such as water and carbon dioxide are not air pollutants. There is now no scientific justification for the 2009 EPA Endangerment Finding, the 2015 Paris Agreement, or climate lawsuits being filed against governments and energy companies.

These conclusions have been available since 2015. Unfortunately, most of my fellow scientists have refused to consider seriously what is now painfully obvious. They are sure, beyond a reasonable doubt, that greenhouse-warming theory is correct and that they must demonstrate consensus to convince political leaders to act promptly. Politics requires consensus, but science thrives on debate.

At, I describe cogently why greenhouse-warming theory is physically impossible. I hereby challenge anyone in the world to find any significant error on this short webpage that could change this fundamental and most unexpected conclusion. Please ask anyone defending greenhouse-warming theory to explain what is wrong at in the public discussion group linked to the end of that webpage.

Links are provided below to extensive videos and text describing this revolution in the physics of heat and what causes observed climate change.

This email is being distributed to more than 8,000 leaders in science, politics, and the energy business plus nearly 18,000 others concerned with climate change. Please forward this email to others you think would be or should be interested.

There are inexpensive solutions we can take together right now to speed reduction of global warming while building a brighter and more energetic future. What are we waiting for?


Dr. Peter Langdon Ward

Science Is Never Settled, Inc., P.O. Box 4875, Jackson, WY 83001-4875

Peter Langdon Ward earned a BA at Dartmouth College and a PhD at Columbia University in geophysics. He worked 27 years at the United States Geological Survey, leading a group of more than 140 scientists and staff and playing a lead role in establishing and initially leading a major national research program. He chaired a committee at the White House, worked on a committee for Vice President Gore, and testified before Congress in 2004 and in 1978. He earned two national awards for explaining science to the public. He and his work were featured on Good Morning America. More details about Ward can be found at

Ward has worked full time in retirement, at his own expense, since 2006, carefully reexamining all the evidence and theories for why climate has changed throughout Earth history.


Video overview (1 minute):

Video (13.5 minutes): A most unexpected revolution in the physics of heat.

Sixteen videos (4 to 12 minutes each): The most expensive mistake ever made in the history of science.

Book: What Really Causes Global Warming? Greenhouse Gases or Ozone Depletion? An extensive website explaining why climate changes in text, videos, scientific papers, and such. Actions we should take right now to reduce human-caused global warming. Why greenhouse-warming theory is not only mistaken—it is physically impossible. Greenhouse-warming theory has never been demonstrated by experiment to be physically possible. How ozone depletion explains observed global warming throughout Earth history.


In science consensus is irrelevant. What is relevant is reproducible results. The greatest scientists in history are great precisely because they broke with the consensus. There is no such thing as consensus science. If it’s consensus, it isn’t science. If it’s science, it isn’t consensus. Period.” Michael Crichton, MD and author (2003)

New scientific ideas never spring from a communal body, however organized, but rather from the head of an individually inspired researcher who struggles with his problems in lonely thought and unites all his thought on one single point which is his whole world for the moment.” Max Planck (1936), one of the fathers of modern physics and a Nobel laureate in 1918

A scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die and a new generation grows up that is familiar with it.” Planck’s Principle (1950)

What gets us into trouble is not what we don’t know. It’s what we know for sure that just ain’t so.” Attributed to Mark Twain