The Story of Climate Change

Explore the history and science of climate change in this comprehensive 90-minute lecture by theoretical physicist and glaciologist R Shankar. Delve into the discovery of past climate changes, the greenhouse effect, and the role of human activities in global warming. Examine paleoclimatology techniques, including ice core analysis, and learn about the development of climate models. Understand the current status and future predictions from the IPCC's AR6 report, and consider the ethical and political implications of climate change. Gain insights into tracking global efforts through the Keeling curve and participate in a Q&A session to further your understanding of this critical global issue.

WHEN: 4:00 pm to pm Sunday, 09 January 2022
Start
The Story of Climate Science
A disclaimer
Outline
Weather and Climate
The Complex Earth System
The dynamical ever changing Earth
The ice ages glacial cycles
Today
Discovery of past climate changes: Ice ages ??
Erratics around the world
The Augustmuni Erratic
What determines the earth's temperature
Energy balance determines the earth's temperature
What is the effect of the atmosphere
The Hypothesis of the greenhouse effect
What makes the atmosphere behave like glass Eunice Newton Foote, 1856
What makes the atmosphere behave like glass John Tyndall, 1861
Understanding radiation
Quantifying the Greenhouse effect: Svante Arrhenius 1896
Arrhenius's conclusion
1900
Are human activities contributing significantly to glob warming ? Guy Stewart Callendar, 1937
Yes, they are Guy Stewart Callendar, 1937
Is the CO2 concentration actually increasing Charles Keeling, 1969
Yes it is ! Charles Keeling, 1969
The updated Keeling curve
Paleoclimatology
Paleo-climate: Ice core analysis
The History of Climate is Archived in the Polar Ice
Ice core analysis: Results
The Naturally Changing Climate
The Milankovitch cycles
What we worry
Physics based mathematical models of the climate and inferences from them: 1950-2000
Development of climate models
The IPCC
AR6: Current status
AR6: The future
AR6: Model predictions
AR6: Stabilization of the climate century scale
AR6: Rough quantification of the global climate response: ECS
Science, Ethics, Politics and Global Climate
Nation-Nation or Rich-Poor
Tracking human efforts: Monitor the Keeling curve
Thank you for your attention Please keep an eye on the Keeling curve
Q&A