Climate Break

• Latino Climate Justice Framework, with Irene Burga

  What is the LCFJ?The  Latino Climate Justice Framework (LCJF) prioritizes environmental justice while helping to protect disproportionately affected individuals–commonly Latine people. Specifically, LCJF works with communities that “face numerous climate-related issues, from extreme heat affecting outdoor workers and poor air quality in neighborhoods near industrial facilities, to increased vulnerability to natural disasters like hurricanes, floods, and wildfires.”The ParticularsLCJF has three areas of focus with different goals for how to better the health of the environment and the Latino community. Chapter one of the LCJF identifies how fossil fuels disproportionately expose the Latine community to toxic pollutants. LCJF believes that carbon capture methods are an extremely passive solution that do not address the problem; instead they hope to prioritize renewable energy while enhancing affordability and accessibility to these amenities by “ramping up recycling, reusing batteries and solar panels” and “ensuring equitable investment”.The second chapter outlines how “latinos are 21% more likely than white individuals to reside in urban heat islands” and “only 19% of Latino/a/e children have nearby recreational green spaces, compared to 62% of white children.” They follow up with recommendations for how they hope that plans for “prioritizing urban greening projects in Latine neighborhoods with the highest heat risk and lowest tree canopy and green spaces” would improve air quality in their neighborhoods, while reducing health risks. The last chapter outlines how Latines have an extremely sacred relationship with land and water.  However, due to “patriarchal and white supremacist oppression” they have been deprived of their access to nature. Moreover, they acknowledge that Earth has been losing vital biodiversity for those very same reasons. Thus, they hope to reduce this problem by opposing efforts to extract natural gas and oil, build the US Mexico border on sensitive lands, and “sprawl development on public lands.”The Upsides The LCJF aims to mitigate climate change by reducing pollution from fossil fuels through stringent regulations and promoting clean energy alternatives. It emphasizes the development of climate-resilient infrastructure to protect communities from climate-related disasters. Additionally, the framework seeks to empower Latine communities by involving them directly in environmental decision-making processes, ensuring that solutions are culturally relevant and effective.Foreseeable Difficulties in UtilizationThough potential issues may include challenges with implementation, funding, political support, scalability, and policy adaptation efforts. LCJF Program Director Irene Burga argues that Latine people are often kept out of the conversation of climate equity despite the fact that they are extremely affected by climate change. If their voices are heard, she says, climate policies would be much more impactful.About Our GuestIrene Burga is the Climate Justice and Cleaner Program Director at Green Latinos, where she works to bring Latine voices to government.ResourcesClimate Advocacy Lab, Latino Climate Justice Framework 2025-28 | Climate Advocacy LabFurther ReadingLCJF, The Latino Climate Justice Framework. El Plan Para Nuestra GenteGreen Latinos, Latino Climate Justice FrameworkFor a transcript, please visit https://climatebreak.org/latino-climate-justice-framework-with-irene-burga/.

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• Rerun: Alleviating Urban Heat Traps, with Jeff Goodell

  What Does Extreme Heat Do?Since the pre-industrialized era, the global temperature has increased by about one degree Celsius. Although one degree may not seem significant, the consequences are increases in the intensity of heatwaves and drier conditions. In addition, in dense urban settings buildings trap and absorb this heat and cause even a higher area of heat relative to surrounding areas. The heat island effect is also exacerbated by the lack of greenery. With current fossil fuel emissions, increased heating of 1.5 degrees Celsius or more is predicted to happen globally within this decade. Among the most promising solutions to combat extreme heat in cities is the effort to promote natural systems – trees, creeks, and parks in cities and creating resilience hubs where people can stay cool and safe from dangerous temperatures.  Because heat impacts individuals in multiple ways, the response to extreme heat must also be multifaceted.  Responses to Extreme HeatThere are many possible responses to extreme heat. On an individual level, for example, when human body temperature rises to the point of heat stroke, individuals are subject to serious illness or in some cases, death.  Heat poses a particular threat when the body is physically unable to cool down. According to the World Health Organization (WHO), between 2000 and 2016, 125 million more people were exposed to heat waves than in the period before 2000. Actions individuals can take to reduce heat exposure include avoiding going outside at peak temperatures, reducing the heat inside of homes, and if reducing heat at home is not an option, going where air conditioning is available. For some vulnerable populations like farmworkers, staying inside where there is air conditioning is not an option. In some states, like California, a temperature of 80 degrees Fahrenheit initiates the California's Heat Illness Prevention Standard, which is enforced by the Occupational Safety and Health Administration (OSHA).  The Standard requires that training, water, shade, and rest be provided to outdoor workers. Currently, there is no federal protection or policy for workers who may experience extreme heat. While a proposed rulemaking is in the works, it may take years before a final regulation is completed.How to Establish Resilience and Safe HubsIn the meantime, there are key actions that anyone can take, including something as simple as making extreme heat a topic of discussion as part of increasing awareness. By spreading awareness and recognizing the consequences of extreme heat, politicians and policymakers will be much more likely to pay attention to the issue and to community necessities. Global and local temperatures are continuing to rise, and, as a result, it is important to have community access to locations with air conditioning systems, heat pumps, and safety hubs particularly in communities whose residents do not have home air conditioners. Hubs may include libraries, churches, schools, and nonprofits which can be essential for providing both a cool place to shelter and a source of information and assistance.Shifting to more green spaces is also an important solution to mitigate the impacts of increased heat. In New York, the Highline is a great example of transforming an old historic freight rail line into a park filled with rich greenery. The incorporation of nature into a previously urban dense space provides the city with more trees and access to green space. Addressing extreme heat in cities requires new approaches and creative thinking for a suite of implementation strategies to provide cooling to the public and creation of green space. Who is Our GuestJeff Goodell is the author of the New York Times bestseller The Heat Will Kill You First: Life and Death on a Scorched Planet, which focuses on responses to extreme heat. Goodell is also a journalist who has been covering climate change for more than two decades at Rolling Stone, The New York Times Magazine, and many other publications. He has a BA from the University of California, Berkeley, and an MFA from Columbia University in New York.Further ReadingLindsey and Dahlman, Climate Change: Global Temperatures (Climate.org, 2024)Dickie, Climate Report and Predictions (Reuters, 2023)California's Heat Illness Prevention Standard (Cal OSHA)Krueger, Heat Policy for Outdoor Workers (The Network for Public Health Law, 2023)Heat and Health (WHO, 2018)Heat Island Effect (The United States EPA)Climate Resilience Hubs (Communities Responding to Extreme Weather)Sustainable Practices | The Highline (The Highline)For a transcript of this episode, please visit https://climatebreak.org/alleviating-urban-heat-traps-with-jeff-goodell/

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• Rerun: Calculating Threats from Rising Temperatures Using Heat Indexing, with Professor David Romps

  Extreme Heat: More Dangerous Than We Think?Extreme heat, one of the adverse consequences of climate change, exacerbates drought, damages agriculture, and profoundly impacts human health. Heat is the top weather-related killer in the United States, contributing to deaths that arise from heart attacks, strokes, and other cardiovascular diseases. As temperatures are projected to increase, so will the risk of heat-related deaths. Urban heat islands, cities with large numbers of buildings, roads, and other infrastructure, are ‘islands’ of hot temperatures due to the reduced natural landscape, heat-generating human-made activities, and large-scale urban configuration. More than 40 million people live in urban heat islands in the United States, with this number only increasing as people continue to move from rural to urban areas. Around 56% of the world’s total population lives in cities. Those living in large cities are more vulnerable to the effects of extreme heat, with research showing an increased mortality risk of 45% compared to rural areas. The risk of heat-related exhaustion and death is a major public health concern that is exacerbated by the climate crisis. The National Weather Service is in the process of creating a new interface known as HeatRisk, which uses a five-point scale to monitor the heat-related risk for vulnerable populations based on local weather data and health indicators. By mapping heat risk, climate scientists hope that individuals will now have a better understanding of the safety concerns associated with being outside during times of extreme heat. Understanding Heat Index DynamicsBefore stepping outside, most individuals check the daily weather prediction to get a sense of the average temperature. In order to measure the perceived temperature, climate scientists use a heat index, a calculation that combines air temperature and relative humidity to create a human-perceived equivalent temperature. Accurate prediction of the heat index is imperative as every passing year marks the warmest on record, with dangerous extreme heat predicted to become commonplace across arid regions of the world. Therefore, tracking such calculations is necessary in assessing future climate risk. Areas especially vulnerable to extreme heat heavily rely on an accurate prediction of temperature to determine if it is safe to go outside.However, there are over 300 heat indexes used worldwide to calculate the threat from heat, defeating the potential universality of this metric. Each heat index weighs factors differently, making it difficult to differentiate between various metrics. Dozens of factors are used to estimate the daily temperature based on predictions of vapor pressure, height, clothing, or sunshine levels. In addition, most heat indexes report the temperature assuming that you are a young, healthy adult and are resting in the shade, not in the sun. If outdoors, the heat index could be 15 degrees higher. If you are older, you may not be as resilient during intense temperatures.As a result, many climate scientists are calling for heat indexes that reveal the apparent risk of being outdoors on any given day. The elderly, children and infants, and those suffering from chronic diseases are more vulnerable to high temperatures than healthy, young adults, which needs to be accounted for when surveying temperature risk. Advanced Heat Assessment Tools: HeatRisk and WBGTThe National Weather Service’s HeatRisk index is different from previous models as it identifies unusual heat times and places, also taking into account unusually warm nights. As such, it provides a more universal measure accounting for the degree to which people in the area are acclimated to various heat temperatures. The HeatRisk index can thus be used to gauge levels of danger associated with temperature, potentially altering an individual’s behavioral patterns. For those working in outdoor fields, the WetBulb Globe Temperature (WBGT) measure can be particularly useful as a way to measure heat stress as it takes into account temperature, humidity, wind speed, sun angle, and cloud coverage. Different from the heat index, the WBGT includes both temperature and humidity and is calculated for areas in the shade. If not exercising or working outdoors, people can revert to the HeatRisk scale to calculate the potential hazards of being outside for longer periods. Heat Indexes are Harder to Calculate Than They AppearBecause scientists have to account for a variety of factors like geography, physics, and physiology, establishing a truly universal heat index is unlikely. For regions like Colorado, creating the criteria for a heat advisory has proven shockingly difficult. Heat indexes typically rely on temperature and humidity, however, the Colorado landscape is so dry that an advisory is very rarely triggered, even during heat waves. In such scenarios, the HeatRisk index provides a better gauge for outdoor safety. Most people underestimate the dangers of extreme heat and often ignore warning messages from local authorities. Educational programs are vital in informing the public on the dangers of extreme heat.Who is David Romps?David Romps, UC Berkeley professor of Earth and Planetary Science, is at the forefront of heat index research. Romps has found that those exposed to extreme heat suffer restricted blood flow and are often unable to physiologically compensate. Through his research, Romps believes that heat index calculations often underestimate the potential heat impacts on individuals, with the human body being more susceptible to heightened temperatures than commonly understood. Further ReadingCenter for Climate and Energy Solutions, Heat Waves and Climate ChangeHuang, et.al, Economic valuation of temperature-related mortality attributed to urban heat islands in European cities, Nature Communications, 2023National Weather Service, What is the heat index?National Weather Service, NWS Heat Risk PrototypeNational Weather Service, WetBulb Globe TemperatureSharma, More than 40 million people in the U.S. live in urban heat islands, climate group finds, NBC News, 20232023 was the world’s warmest year on record, by far, NOAA, 2024Coren, The world needs a new way to talk about heat,  The Washington Post, 2023Hawryluk and KFF Health News, A New Way to Measure Heat Risks for People, Scientific American, 2022UC Berkeley Heat Index Research, David RompsUS EPA, Climate Change Indicators: Heat-Related DeathsUS EPA, What are Heat Islands? For at transcript of this episode, please visit  https://climatebreak.org/calculating-threats-from-rising-temperatures-using-heat-indexing-with-professor-david-romps/

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• Rerun: Regenerating our Ecosystems with Good Fire, with Dr. Melinda Adams

  Wildfires and climate change: a brief overview North America is no stranger to wildfires. As of August 15, 2024, 29,917 fires this year have burned more than 5.2 million acres, according to the Center for Disaster Philanthropy. While this year’s number of wildfires is below the annual average of 35,691, the yearly acres burned is above the average of 3.8 million acres of the past 10 years.While wildfires are a naturally occurring phenomenon, their frequency is heavily influenced by climate change, especially on the west coast of the United States. Wildfire risk increases depending on a number of factors, including temperature, soil moisture, and the presence of trees, shrubs, and other fuel. Additionally, climate change dries out organic matter or “fuel” in forests, resulting in a doubling of the number of large fires between 1984 and 2015 in the western United States. As climate change creates warmer and drier weather conditions, wildfires will likely become more frequent; studies show that an average annual warming of one degree celsius would increase the median burned area per year by as much as 600 percent in some types of forests. Ultimately, as temperatures warm globally and drier conditions ravage the country, these fires will spread farther and become harder and harder to extinguish. “Good” fire: an ancestral solution to our wildfire problem  As the planet warms, many have turned to ancient methods to mitigate the effects of climate change. Notably, Dr. Adams borrows the concept of “good” fires from Native American cultural fires practices, where low intensity fires are lit to heal the surrounding ecosystem. In order to positively change the public’s relationship with fire, fire agencies in California and Native American tribes have started using this term. Generally, “good” or cultural fires not only restore degraded soils and decrease vegetation or fuel overgrowth, but also deepen the spiritual ties people have to the land they inhabit. Specifically, good fire increases organic matter, keeps soil surfaces vegetated through the regrowth of plants, and encourages biodiversity. In California, many ecosystems rely on fire for its regenerative powers. Dr. Adams notes that fire connects to water, soil health, and the health of animals and surrounding areas. It can also mitigate invasive species growth and eliminate harmful pests that are killing a lot of trees, making them more susceptible to catching fire and starting larger forest fires. As a result, fire promotes many benefits for ecosystem health.Dr. Adams writes that as a member of the N’dee San Carlos Apache Tribe, she maintains a sacred attachment to the land, and believes that humans and the Earth are relatives. Subsequently, as siblings, humans and the land must help each other survive. Following these teachings around our relationship to more-than-human sibling and reciprocity, “good” fire participants can achieve “futurity” (intergenerational exchanges) that will safeguard future protection of the environment and human communities. Listening to these Native American Traditional Ecological Knowledge (TEK) could lead the way to developing a more sustainable relationship to the planet and, in doing so, mitigate the effects of climate change.Mother Earth: how climate matriarchy can save the planet The concept of “good” fire stems from Indigenous Matriarchal Ecology. Many Native American tribes are matriarchal, such as the Cherokee and the Navajo. Applying traditionally “matriarchal” values such as care, tenderness, and love to environmental conservation could be an effective climate change solution. Inclusivity and the centering of Indigenous women’s knowledge can also allow opportunities to enhance plant and soil health, remediation, and rematriation of the quality of our plant and soilscapes to provide a prosperous support structure that enables ecosystems to thrive.By practicing Indigenous Matriarchal Ecology, cultural fire participants can collectively start seeing the Earth as a Mother: one who gives life and receives it in return. This is why Dr. Adams and her colleagues focus on the role the soil can play in the fight against climate change through the practice of Matriarchal Ecology. Dr. Adams writes that applying a soil health approach to ecology in tandem with cultural fires can play an important role in climate mitigation by storing carbon and decreasing greenhouse gas emissions. By restoring degraded soils and adopting soil conservation practices, such as cultural fire and Indigenous Matriarchal Ecologies, “good” fire practitioners can enhance the Earth’s carbon sequestration capacity and build resilience to climate change. Furthermore, these soil improvements on formerly mined and degraded lands could make soilscapes more resilient to erosion and desertification, while maintaining vital ecosystem services. And hopefully, these practitioners can inspire others, non-Native and Native alike, to develop a better understanding of and relationships with the planet.Indigenous Matriarchal Ecologies can highlight the positive effects of cultural fire on environmentally degraded soils, while simultaneously building native plant and soil resilience toward climate and cultural futurity that all communities can enjoy.Who is our guest?Dr. Melinda Adams is a member of the N’dee San Carlos Apache Tribe and an Assistant Professor in the Department of Geography and Atmospheric Science at the University of Kansas. A cultural fire practitioner and scholar, her research focuses on the revitalization of cultural fire with Tribes in California and more recently with Tribes in the Midwest. Her work with Indigenous communities combines environmental science, environmental policy, and Indigenous studies methodologies.ResourcesCenter for Climate and Energy Solutions: Wildfires and Climate ChangeCalifornia Native Plant Society: Native Plants and Climate Change: Indigenous Perspectives Further reading UC Davis: Melinda Adams: Flame KeeperClimate Designers: Podcast: Deep Dive with Dr Melinda Adams: Solastalgia & Soliphilia For a transcript of this episode, please visit https://climatebreak.org/regenerating-our-ecosystems-with-good-fire-with-dr-melinda-adams/.

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• Rerun: Eliminating Contrails to Increase Aircraft Sustainability, with Matteo Mirolo

  The aviation industry and climate change: what are contrails?  A 2022 IPCC report found that direct GHG emissions from the transport sector accounted for 23% of global energy-related CO2 emissions in 2019. Road vehicles accounted for 70% of direct transport emissions, while 1%, 11%, and 12% of emissions came from rail, shipping, and aviation, respectively. As the mounting effects of climate change continue to be felt worldwide, the aviation industry is pioneering a method to reduce its contributions. Namely, it is focusing on efforts to curtail condensation trails – or contrails – which are fluffy, white cloud formations that sometimes appear as airplanes fly through the cold, humid, and icy parts of the atmosphere. Because they are a combination of soot, water vapor, and particulate matter (such as NOx), when aircrafts pass through these areas, they form cirrus clouds that absorb the radiation escaping from the surface, and, in turn, trap the heat. This phenomenon could account for around 35% of aviation’s total contribution to climate change — that’s about 1 to 2% of overall global warming! Together, these contrails roughly triple the total global warming impact of aviation compared to CO2 alone. Therefore, it is imperative that the aviation industry find solutions to reduce the production of contrails. What the industry has come up with: 3 solutions One method of reducing contrails consists of replacing traditional fuels with biofuels made from plant or animal biomass, waste, sugars and ethanol (corn). Sustainable jet fuels can produce 50%-70% fewer contrails according to research conducted by NASA and the German Aerospace Center (DLR). Jets using alternative fuels release fewer soot particles, thereby creating fewer ice crystal formations, which ultimately reduces contrail production by extension. Though biofuels may initially form larger crystals, they fall more quickly and melt in the warmer air below.The second method involves developing electric or hydrogen-powered commercial aircrafts. Hydrogen is an attractive alternative to traditional aircrafts because it can be burned without emitting CO2 and is widely available. These aircrafts would either burn liquid hydrogen directly into their engines, or use gaseous hydrogen in a fuel cell system. With fuel cells, the hydrogen creates an electrochemical reaction that produces electricity to charge the aircraft's batteries while in flight. A third method involves redirecting flights to avoid contrail-inducing zones. Between 2% and 10% of all flights create around 80% of the contrails, so researchers have started developing predictive models that would allow airlines to identify and avoid contrail regions similarly to how they plan to avoid turbulence. The cost is predicted to be $0.5/ ton of CO2 equivalent. Furthermore, only minor adjustments to the routes of a small fraction of airplane flights is required, making predictive models highly attractive and cost effective. Some ChallengesWhile biofuels have great potential, they come with their own set of challenges. First is the issue of land use and its effects on agriculture. Producing three billion gallons of sustainable aviation fuel would require between 8 and 11 million acres of corn or 35 and 50 million acres of soybeans, depending on crop yields. This could impact food production and cost. Shifting to corn or soybean based fuels has also been found to produce significant adverse emissions impacts. Lastly, it’s unclear whether sustainable fuels can meet the world’s growing demand for aerial transportation.   While hydrogen is attractive, it has lower energy density than fossil fuels, meaning that a higher onboard fuel storage volume is needed to cover the same distance as current fossil fuel-powered aircrafts. In addition, H2-powered large passenger planes would require significant changes to aircraft design, making it less cost effective in the short term when RD&D costs are considered (development of fuel cell technology and liquid hydrogen tanks, aircraft research, hydrogen infrastructure, fleet output, etc). Industry experts anticipate that it will take 10 to 15 years to make these important advancements. Lastly, contrail prediction models rely on a variety of input data, including flight trajectories, aircraft and engine parameters, fuel characteristics, and weather data. However, the availability and accuracy of some of these data inputs is still a challenge, as no standardization exists. Who is our guest? Matteo Mirolo is Head of Policy and Strategy, Contrails at Breakthrough Energy, an organization founded by Bill Gates to spur innovation in clean energy and address climate change. Prior to that he was sustainable aviation policy manager at Transport & Environment (clean transport advocacy group). Mirolo is also a member of the sustainability advisory panel at Air New Zealand. ResourcesIPCC Sixth Assessment Report: TransportThe contribution of global aviation to anthropogenic climate forcing for 2000 to 2018BiofuelsNASA-DLR Study Finds Sustainable Aviation Fuel Can Reduce ContrailsHydrogen could power the next-gen aircraft of tomorrowLand-Use Impacts of the Sustainable Aviation Fuel Grand ChallengeHow much biofuel would we need to decarbonise aviation?Hydrogen-powered aviationFurther readingAviation Contrails The missing policies on aviation emissions For a transcript of this episode, please visit https://climatebreak.org/eliminating-contrails-to-increase-aircraft-sustainability-with-matteo-mirolo/.

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