University of California Audio Podcasts (Audio)

In order to reach global net-zero emissions by 2050, we must remove CO2 from the atmosphere as well as prevent further emissions. Carbon Dioxide Removal (CDR) can be accomplished naturally -- through forests, soil sequestration, or mineralization -- and technologically. In fact, we will need both natural and technological CDR methods to get to net-zero. So what methods exist that remove carbon from the atmosphere? What are their respective costs, how do they compare, and which are already on the market? Series: "Sustainable California" [Science] [Show ID: 38045]

Journalist and Los Angeles Times columnist Jean Guerrero covers immigration issues and the current political climate. She is the author of "Hatemonger: Stephen Miller, Donald Trump and the White Nationalist Agenda." Her first book, "Crux: A Cross-Border Memoir," won a PEN Literary Award and was named one of NPR's Best Books of 2019. Her writing is featured in Vanity Fair, Politico, The Nation, Wired, and The New York Times. Series: "Helen Edison Lecture Series" [Public Affairs] [Humanities] [Show ID: 38003]

Climate economists have created a value called the "social cost of carbon" in order to better understand the cost/benefit relationship of climate policies and regulations. The social cost of carbon is the cost to society from damages caused by a ton of CO2 emissions. This value is difficult to quantify, with factors such as future societal wealth and global climate damages (such as species extinction) that are impossible to know. Series: "Sustainable California" [Science] [Show ID: 38046]

We are losing species much more rapidly now than in the last two million years! At this pace, we may lose a large proportion of vertebrates, including mammals, birds, reptiles, amphibians, and fishes, in the next two to three decades. Modern extinctions caused by human activities are higher than the normal or natural extinction rate which tells us that we may be causing a mass extinction. In the history of life on Earth, there have been five mass extinctions – episodes where large numbers of species became extinct in a short period of time. All mass extinctions have been caused by natural catastrophes, such as the impact of a meteorite. We are the only species that has the capability to save all endangered animals. Paradoxically, saving them is the only way to save humanity. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37904]

This program discusses peripheral nerve diseases, including the anatomy of the central and peripheral nervous systems by Dr. Maggie Waung. Peripheral nerves control sensory, motor and autonomic functions and can regenerate though very slowly. Dr. Michael Wilson discusses difficult to diagnose neurological disease cases using advances in genomic testing, metagenomics for neuroinfectious disease, cancer and autoantibody detection for inflammatory conditions. Series: "Mini Medical School for the Public" [Health and Medicine] [Show ID: 37858]

The field of performance studies is interested in not just performance but how it intertwines with social and cultural contexts. It sees value in taking a scholar practitioner approach. Monica Stufft, PhD, shares how she uses performance to tackle issues surrounding the climate crisis and science communication. Series: "Exploring Ethics" [Humanities] [Science] [Show ID: 37318]

Filmmaker Ann Kaneko spoke with moderator Kelsey Moore about the process of directing and editing her documentary, Manzanar, Diverted: When Water Becomes Dust, which depicts an alliance between former Japanese American WWII prisoners, Native Americans, and environmentalists to defend their sources of water. Kaneko describes the decisions behind the structure of the film, as well as its focus on a certain place, which helped to depict the issue of water in relation with different communities. She also discussed the notable use of sound and music in the film, which worked to solidify the characterization of Manzanar, as well as the harshness of its situation. Series: "Carsey-Wolf Center" [Humanities] [Show ID: 38039]

The introduction of species into new environments has occurred throughout human history. While most introductions fail and most of those few that establish remain environmentally innocuous, a notable minority wildly proliferates in their new ranges. These invaders disrupt ecosystems and burden economies. Environmental impacts associated with invasions are hard to predict and vary in space and time but include ecosystem-level disruptions, species extinctions, and the homogenization of biodiversity. Economic costs, while challenging to quantify, are enormous and growing. Given that established invaders are difficult to eradicate, let alone manage, stopping invasions before they start remains the most effective strategy to limit further costs resulting from invasions. Challenges to implementing this approach include regulating trade and coordinating rapid governmental responses to emerging threats. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37905]

Beginning with Homo erectus at least a million years ago, hominins have used fire to engineer the world around them. The earliest uses of fire surely included cooking, changing the energy yields of foods. Such innovations altered the course of our evolution, facilitating the evolution of species that could adapt quickly using tools and social ingenuity. Within the last 200,000 years, hominins also used fire to change the material properties of stone, pigments, sap, and wood. While these changes represent a fundamental shift in the role of humans as dominant shapers of their environments through years of evolution and innovation, ecosystems adjusted as early humans remained embedded within them. However, humans are not now simply shifting to another sustainable balance - we are pushing environmental thresholds across one tipping point after the next. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37907]

This CARTA public symposia addresses specific examples of how humans have drastically altered the planet. Acknowledged experts will discuss clearly defined global-scale negative impacts on planet earth, our life support system (other than climate change, population growth and infectious diseases, which are well-known). Each talk succinctly describes a specific impact, the role that our species has played, and concludes with ongoing or potential approaches to mitigation. In the process, we are coming full circle to Anthropogeny, asking how a single species could evolve the ability to so drastically alter the entire planet. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 38008]