geoengineering – Marin Science Seminar

Title: “Engineering Rivers and Wetlands for Climate Resiliency” with Rachel Kamman PE of Kamman Hydrology & Engineering

Date: Wed. February 5th, 2020; 7:30 – 8:30 pm at Terra Linda HS in San Rafael, Room 207

Kamman Hydrology & Engineering’s mission is to provide hydrologic, engineering and geomorphology support in the restoration, enhancement and protection of watershed, river, wetland and coastal systems. Rachel Kamman will demonstrate and discuss how this can be done to help rivers and wetlands adjust to changes brought on by climate change.

Bio: Rachel Z. Kamman PE is a consulting hydrologist whose work focuses on ecological habitat restoration. Her San Rafael based consulting practice focuses on projects that revolve around sensitive wetland, fishery, and/or riparian habitat issues and problems. Rachel specializes in the fields of hydraulic and hydrodynamic analysis and modeling, focusing on the protection and restoration of estuarine and wetland systems. Typically, Rachel Kamman works on multi-disciplined projects, collaborating closely with biologists/botanists, ecologists, planners, engineers, and/or regulatory and resource agency staff. She holds a B.S. in Civil Engineering from Lafayette College and an M. Eng., in Hydraulics, Coastal Engineering, Hydrology & Geomorphology from UC Berkeley.

Links:

Kamman Hydrology and Engineering, Inc.
Previous MSS talk: 2/8/12 Restoring Ecosystems: Applications in Engineering and Earth Sciences

Facebook event: RSVP here

Title: “Geoengineering and Terraforming: the manipulation of climate on Earth and other planets” with Warren Wiscombe Ph.D. of NASA Goddard

Date: Wed. January 29th, 2020; 7:30 – 8:30 pm at Terra Linda HS in San Rafael, Room 207

In 2010 ‘geoengineering’ entered the Oxford English Dictionary as ‘the modification of the global environment or the climate in order to counter or ameliorate climate change’. Geoengineering must be intentional, not accidental (as in the current global warming). And geoengineering is only a stopgap measure on the way to a renewable energy economy.

The safest and most predictable method of moderating climate change is to reduce greenhouse gas emissions. However, geoengineering may be useful to augment emission reductions. While some methods would incur gargantuan costs, notably the space-based ones, others are a relative bargain and technologically easy, notably putting aerosols into the stratosphere. While there are few technical showstoppers, geoengineering technology is nascent, and there are major uncertainties regarding its effectiveness, cost, and environmental impacts.

Terraforming, a much more radical version of geoengineering, is the technology to make an alien planet more suitable for Earth life forms. Edgar Rice Burroughs hypothesized terraforming in his book “Princess of Mars”. Kim Stanley Robinson fleshed out the idea in his trilogy “Red/Green/Blue Mars”. If humanity is to escape extinction, it will have to learn how to do terraforming. Possible methods will be noted, but the field is barely in its infancy.

Bio: Warren Wiscombe got a BS in Physics from MIT and a PhD in Applied Math from Caltech. Starting in 1971, he spent his career working on radiative transfer aspects of climate, notably the interaction of sunlight with clouds and aerosols. From 1983 till retiring in 2013, he worked at NASA Goddard Space Flight Center. His core background is in e.m. radiation spanning wavelengths from UV to radio.

Links:

Previous MSS talks: 2/13/19 – Merchants of Doubt: The Deeper Roots of Climate Skepticism; 10/16/19 – How Dangerous are Microwaves?
Previous MSS talk – 1/4/18 – Exoplanets
N ASA Cubesat Satellit e
NASA Airborn Science Program
LinkedIn

Facebook event: RSVP here