Scientist behind the Hockey Stick Graph expresses doubts regarding climate alarmism

Climate scientist Michael Mann, known for his creation of the Hockey Stick graph, has recently raised doubts about climate alarmism. This unexpected shift in stance has sparked debate and speculation about the future of the climate change movement.

Mann’s Hockey Stick graph gained fame in 1998 for its portrayal of unprecedented warming in the late 20th century. It challenged the consensus view that temperature fluctuates significantly over centuries. However, critics argue that the graph’s statistical techniques produce hockey sticks out of random data, rendering it unreliable.

Furthermore, Mann’s method of splicing actual temperature records into the graph when proxy data clashed with thermometer records has been deemed deceptive. This raises questions about the accuracy and validity of the entire proxy exercise.

In his latest book, “Our Fragile Moment,” Mann presents a mixed bag of propositions. On one hand, he acknowledges that some claims about climate change may be false. On the other hand, he expresses a relaxed view about the near-term prospects for the world, which sets him apart from prominent figures like Greta Thunberg.

Mann’s book suggests that CO2 is the main driver of Earth’s temperature, with occasional contributions from solar activity. However, he also acknowledges that there are many factors at play and that the future remains speculative. He introduces the concept of Earth System Sensitivity, which suggests that changes in the Earth’s system may take a long time to manifest, particularly during glacials.

The author of the article urges readers to explore conflicting views and delve into Mann’s book for a deeper understanding. The book provides a wealth of detail that cannot be summarized adequately in a review. Additionally, the author emphasizes the need for a rational debate based on rational premises, acknowledging that transitioning away from fossil fuels will be a gradual process spanning centuries, not decades.

The key takeaway from Mann’s book is his statement that claims of imminent climate-driven human extinction and runaway warming are scientifically unsupportable and unhelpful. This message resonates with those advocating for a more measured approach to addressing climate change.

In conclusion, Mann’s apparent doubts about climate alarmism have sparked discussion and debate within the climate change movement. While his past contributions to climate science are significant, critics argue that his methods and tactics have been flawed. However, his latest book provides valuable insights and encourages a rational debate on the future of climate change.