Building the World

ENERGY: Physics of Climate Change


“Nobel Prize Medal.” Photographer, Jonathunder. Wikimedia commons.

Syukuro Manabe, Klaus Hasselmann, and Giorgio Parisi “demonstrate that our knowledge about the climate rests on a solid scientific foundation,” stated the Nobel Prize Committee, when awarding the Nobel Prize for Physics 2021. Half of the prize went to Parisi for discovery of the “interplay of disorder and fluctuations in physical systems from atoms to planetary scales,” while Manabe and Hasselmann split the other half. Manabe created one of the first climate models that revealed how carbon emissions warmed the planet, while Hasselmann showed that Manabe’s computer simulations could accurately predict the trends of climate change, even while weekly weather fluctuations were still variable. Parisi won for studies of the results produced when metals like iron or copper are mixed, revealing patterns. Parisi commented, when winning the Nobel Prize, that perhaps the Nobel Committee wanted to send the world a message about climate change: “I think it’s urgent. It’s clear that for the future generations we have to act now in a very fast way.” (Brumfiel 2021). Stefan Rahmstorg, climate modeler, stated “Physics-based climate models made it possible to predict the amount and pace of global warming, including some of the consequences like rising seas, increased extreme rainfall events and stronger hurricanes, decades before they could be observed.” (Keyton and Borenstein, 2021)

“Global warming” NASA 2016. Image: public domain,

Recent weather proves the scientists right: in 2021, 36% of Americans, and many more worldwide, suffered severe effects of climate change through drought and fires, storms and floods. In a few weeks, the world will convene in Glasgow, Scotland for COP26, sequel to the Paris Agreement (COP21). Now it is time for action. What do you think are the highest priorities for climate?

Brumfiel, Geoff. “The Nobel Prize in physics honors work on climate change and complex systems.” 5 October 2021,

Hasselmann, Klaus. “Interview with Klaus Hasselmann” 2009. Frontiers of Knowledge Award in Climate Change. VIDEO

Keyton, David and Seth Borenstein. “Physics Nobel rewards work on complex systems, like climate.” 5 October 2021.

Nobel Prize.

Manabe, Syukuro and Richard T. Wetherald. “On the Distribution of Climate Change Resulting from an Increase in CO2 Content of the Atmosphere.” January 1980, Journal of the Atmospheric Sciences, Volume 37, pages 99 – 118.

Manabe, Syukuro. “Why this is happening” Interview upon receiving Nobel Prize in Physics 2021.” AUDIO. Telephone call interview with Manabe explaining the work.

Parisi, Giorgio. “Statement on receiving Nobel Prize.” 5 October 2021. AUDIO interview.

Building the World Blog by Kathleen Lusk Brooke and Zoe G. Quinn is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unp

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