Another nail in the net zero coffin!
"I've never liked hoax. I think scam is a better word"
Here are some key criticisms of Professor (emeritus) William Happer’s claims about climate change.
Happer suggests that climate models are unreliable and that the human impact of CO₂ is small - mainstream climate scientists say his claim ignores the large body of peer-reviewed evidence showing otherwise.
He argues that increased CO₂ will be beneficial (e.g., better plant growth) and downplays risks - critics note this overlooks how climate change also affects rainfall, pests, heat stress and crop yields negatively.
Although trained in physics, Happer lacks formal credentials in climate science or atmospheric modelling - which means his views, while visible, are outside the consensus of experts in climate-specific disciplines.
He claims climate models are “junk” and useless, but multiple reviews show models still capture the main warming trends and are valuable tools.
Happer argues that Earth’s climate has always changed and that current warming is just a natural cycle, yet he downplays how rising CO₂ and human activity amplify that change.
He signed letters attempting to alter the official stance of the American Physical Society on global warming, and his arguments are repeatedly listed as examples of climate misinformation (e.g., “CO₂ is not a pollutant,” “historical CO₂ was higher, so no risk now”).