Climate Change (Audio)

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Climate Adaptation and Action – Lessons Learned from the State of California Jul 18, 2022

Show notes

The State of California has been steadfast in battling climate change and has passed several pieces of legislation including the Global Warming Solutions Act of 2006 which established a comprehensive program to reduce greenhouse gas emissions from all sources throughout the state. California is at the forefront of working towards 100-percent renewable energy by 2045. Siva Gunda, the Vice Chair of the California Energy Commission, and Wade Crowfoot, the Secretary of California Natural Resources Agency, discuss lessons learned from the state's adaptation to the growing threat of climate change and the action policymakers are taking to prevent that threat from growing. Series: "Institute of the Americas" [Public Affairs] [Science] [Show ID: 38164]

Carbon Dioxide at Scale: Working Fast for an Equitable Future Jul 15, 2022

Show notes

The 2022 Carbon Sequestration Symposium at California State University, Bakersfield, focuses on engaging the community, industry, policymakers, and academia in the topic of carbon sequestration. According to several studies, Kern County has been identified as a prime location for the geological sequestration of carbon dioxide. Lawrence Livermore National Laboratory's Roger Aines, Ph.D., and Kim Mayfield, Ph.D., discuss efforts underway to capture and store carbon dioxide as a viable option to mitigate climate change. Series: "Climate Solutions " [Science] [Show ID: 38157]

Climate Action Regional Security and the Road to the Summit of the Americas Jul 07, 2022

Show notes

The United States Southern Command's (USSOUTHCOM) is responsible for providing contingency planning, operations, and security cooperation for Central and South America, and the Caribbean. USSOUTHCOM is one of the eleven unified combatant commands in the Department of Defense. While regional security is an important aspect of its mission, climate change is having an affect on its area of responsibility. Climate change is impacting our national security and the security of our partners and allies. USSOUTHCOM's area of responsibility faces increased demand for humanitarian and disaster relief assistance during a hurricane season that could see a record number of storms. This comes as several Central and South American countries face a drought. Former U.S. Ambassador to Paraguay, Leslie Bassett moderates a discussion with the commander of USSOUTHCOM, GEN. Laura Richardson who underlines the effort being made to help combat climate change in the region. Series: "Institute of the Americas" [Public Affairs] [Science] [Show ID: 38163]

Design at Large: Alternative Transportation Futures Jul 05, 2022

Show notes

In California, the car is king. Most travel is conducted by car across all socio-economic groups and has been incentivized by massive government investment in roads, infrastructure, and sprawling land use developments. Will gas-fueled cars continue to dominate the roads or do we need an alternative transportation future? How can we redesign our transportation system to reduce chronic traffic congestion, promote healthier environments, reduce the cost of travel, and provide greater mobility between work, home, and play for all? Series: "Design at Large" [Public Affairs] [Humanities] [Business] [Show ID: 38118]

The State of the Pacific Ocean: Climate Change and the Case for Expanded Hemispheric Cooperation Jun 29, 2022

Show notes

Spanning nearly 63 million square miles from California to China, the Pacific Ocean is by the far the largest of the world's ocean basins. The Pacific contains more than half of the free water on the planet and is the deepest ocean on Earth. Climate change impacts are being felt around the globe, but what do we do about it? Much of the ocean is still waiting to be explored, but human activities like industrial fishing, deep-sea mining, and fossil-fuel burning are changing it in significant ways. Scripps Institution of Oceanography professor Brice Semmens moderates a discussion with NOAA Administrator, Richard Spinrad and State Department Deputy Assistant Secretary of Ocean, Fisheries and Polar Affairs, Maxine Burkett on the State of the Pacific Ocean and how the hemisphere can work together to combat the growing effects of climate change. Series: "Institute of the Americas" [Public Affairs] [Science] [Show ID: 38162]

Our Oceans: Key To Storing Carbon? Jun 28, 2022

Show notes

Using carbon dioxide removal (CDR) strategies to mitigate climate change is a land-intensive endeavor. To capture one gigatonne of CO2 through direct air capture requires a facility & energy production footprint of at least hundreds, but potentially tens of thousands of square kilometers. To capture one gigatonne of CO2 via reforestation requires about 862,000 square kilometers of arable land (nearly the size of the Kalahari Desert). We currently release about 40 gigatonnes of CO2 into the atmosphere every year, so…do the math. And land that is allocated for CDR must compete with other land use claims: for urbanization, agriculture, biodiversity, and renewable energy technologies. But what if our perspective was slightly… more aqueous? Oceans, which make up 70% of the Earth’s surface, already absorb more than 10 billion tonnes of CO2 annually. Series: "Climate Solutions " [Science] [Show ID: 38190]

Buried Treasure: Unearthing the Power of the Soil Carbon Bank Jun 22, 2022

Show notes

Soil - that mixture of degraded bedrock, decomposing organic matter, and microorganisms that nourish the root systems of plants and trees - holds 4x more carbon than vegetation. By changing how we manage our soils, we can increase the rate of CO2 trapping from the atmosphere into the soil carbon bank, while at the same time enhancing the agricultural productivity of a region. Dr. Asmeret Asefaw Berhe, Professor of Soil Biogeochemistry at University of California, Merced, is a global leader in the carbon storage potential of soils. She sat down with Climate Now to explain why soils are so good at trapping carbon, how much they could hold, and what we can do to increase soil carbon storage. Series: "Climate Now Conversation" [Science] [Show ID: 38057]

CARTA - Humans: The Planet-Altering Apes - Global Alteration of the Nitrogen Cycles by Humans with David Tilman Jun 11, 2022

Show notes

Humans now annually add more biologically available nitrogen to the Earth’s land surfaces than do all natural processes. For 3 billion years, available nitrogen had been the major limiting currency for life on Earth. The recent human disruption of the global nitrogen cycle is causing major environmental harm, including water and air pollution, marine dead zones, 10% of global greenhouse gas emissions, and species extinctions. Three major ways to solve this nitrogen problem are: (1) much more efficient global use of nitrogen fertilizers; (2) shifts to lower-meat and healthier diets; and (3) halting the conversion of food crops into biofuels, such as US corn ethanol used for transport. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37910]

Carbon Dioxide Removal May 30, 2022

Show notes

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]

Social Cost of Carbon May 30, 2022

Show notes

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]

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