Earth’s Climate: Past, Present, and Future (Lecture - 01) by Raghu Murtugudde

SUMMER COURSES

EARTH’S CLIMATE: PAST, PRESENT, AND FUTURE

SPEAKER: Raghu Murtugudde​ (Professor of Atmospheric and Oceanic Science and Earth System Science, University of Maryland, and Visiting Professor, IIT Bombay)

DATE: 01 July 2019 to 19 July 2019

VENUE: Emmy Noether Seminar Hall, ICTS Bengaluru


For understanding climate change, its causes and global warming, it is important to start from understanding weather and climate and why they exist on earth via the energy balance. The timescales of change vary from years to decades to centuries and millennia. Processes that drive climate change include tectonics, orbital change, ice ages, solar and volcanic forcings, and human activities. Carbon has always been a component of change at all timescales. Human influence is mostly through perturbations to the carbon cycle and the associated radiative forcing. Humans are now trying to navigate the future evolution of climate avoid the unmanageable and manage the unavoidable. This course provides a overview of all natural-human system issues related climate variability and change.

Text Book: Earth’s Climate: Past and Future by William F Ruddiman, 3rd Edition, MacMillan Publishing.

Report: IPC C AR5. Other reports and papers to be provided by the Instructor.

Lectures:

Introduction to Climate Science
Climate Data and Archives
Tectonic Timescale Climate Change
Orbital Timescale Climate Change
Glacial/Deglacial Timescale Climate Change
Millennial Oscillations
Historic Climate Change
Modern Climate Change
Future Climate Change


Schedule:

1 -19 July 2019 (Mon - Fri)
Time:

10:00 AM

[MahalakshmiDV]

Nice presentation... Every word and sentence able to grab, thanks alot Raghu sir

[Nothingimportant]

Thank you professor for teaching this wonderful course. I am following this for a climate change course and I find it very wonderful.

[maxtabmann]

Mistake No. 2 @39:15: Where is the surface area of the earth? It is missing in this formula.

[maxtabmann]

Next deception @42:50: Mars and Venus have the same CO2 concentration of 97%, Earth has a CO2 concentration of 0.04% but Mars is not warmer than earth, but much colder. What is missing in this simple model is the atmospheric pressure, which is the prime reason why Venus is so hot and Mars is so cold.

[maxtabmann]

@49:25: Window of opportunity. No mention that the strongest absorber in this diagram is water vapor - not CO2. CO2 absorption is only relevant in a narrow band around 15um. The playing down of water is questionable. Average water vapor concentration is few percent while CO2 concentration is 0.04% so water vapor is 30-100x higher. CO2 also does not mix well. The highest concentration is over the rain forrests, 2 times higher than in Hawaii.

[kissmyassbest]

What a joke

Have you heard about the greenhouse effect 🤔

Yes in my greenhouse 😉

And have you heard that people are lying for prestige and money?
🤨