Project
Combating Short-Lived Climate Pollutants (SLCPs)
You encounter them every day: soot from auto exhaust and burning wood (black carbon), gases that make refrigerators and air conditioners cool (hydrofluorocarbons), natural gas that makes your stove work (methane), and ground-level ozone formed by sunlight and fossil-fuel emissions. Short-live climate pollutants are all around us. And controlling them holds great potential in the fight against climate change.
Short-lived climate pollutants (SLCPs) are so named because they last a relatively short time in the atmosphere, from a few days to a few decades. In contrast, carbon dioxide (CO2) can last centuries. Yet they’re a major contributor to climate change, degrade air quality, and have grave impacts on food security and the health of the world’s most vulnerable populations.
According to the Intergovernmental Panel on Climate Change, SLCPs are responsible for more than 30 percent of global warming (more recent studies estimate their contribute to be as high as 45 percent).
Effective control of SLCPs could create significant progress in the near-term fight against climate change, buying time to implement long-term solutions. It could also mean better air quality, a reduction in premature deaths from respiratory and heart disease, and improved crop yields.
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COP25: Organizations call on governments to improve air quality and, with it, slow the climate crisis
In a public letter, environmental and social organizations from Latin America and around the world urge governments to limit short-lived climate pollutants in their international climate commitments, which must be submitted to the United Nations by March 2020. Madrid, Spain. Governments must include ambitious and measurable targets for the reduction of short-lived climate pollutants in their new climate commitments, more than 100 organizations said in an open letter presented today, on the occasion of Human Rights Day, at the twenty-fifth Conference of the Parties (COP25) to the United Nations Framework Convention on Climate Change. "Mitigating short-lived climate pollutants implies reducing global warming in the short term and, at the same time, advancing in the decontamination of our cities," said Javier Dávalos, coordinator of the Climate Change Program at the Interamerican Association for Environmental Defense (AIDA). These pollutants are sometimes called "super climate pollutants" because they contribute to the climate crisis with much more intensity than carbon dioxide (CO2). As their name indicates, they stay a relatively short time in the atmosphere—from days to decades—unlike CO2, which can remain for millennia. Short-lived climate pollutants include black carbon, methane, tropospheric ozone and hydrofluorocarbons. They degrade air quality, affect glacial areas, and reduce crop yields. Poor air quality is the world's most deadly environmental problem. Each year, more than four million people die from the health damages caused by air pollution. The benefit of reducing these harmful emissions has been backed by science. The United Nations Intergovernmental Panel on Climate Change (IPCC), which brings together experts on the subject, stressed that to tackle global warming we must incorporate the mitigation of non-CO2 pollutants, specifically black carbon and methane. In addition, more than 11,000 scientists from around the world noted that the early reduction of short-lived climate pollutants would reduce warming by more than 50 percent over the next several decades. "The coming update of Nationally Determined Contributions opens up the possibility of governments betting on the elimination of these pollutants and thus contributing effectively to the fight against climate change and poor air quality," said Florencia Ortúzar, AIDA attorney. The deadline for governments to update their contributions is March 2020. That’s why the signatory organizations have called for the inclusion of ambitious and measurable goals for the reduction of these short-lived climate pollutants, and for governments to detail how the targets will be implemented, monitored and reported in the new commitments before the United Nations. "The solutions needed to reduce and eliminate each of the four short-lived climate pollutants are not mysteries. They are known and have been proven. But we need governments to prioritize those solutions if we are going to be able to avoid the worst impacts of climate change," commented Amanda Maxwell, director of the Latin America Project for the Natural Resources Defense Council (NRDC). In addition to the open letter, the organizations have launched an online petition for the cause to be supported with signatures from individuals around the world. Both problems, the climate crisis and poor air quality, most severely affect the most vulnerable segments of the population, among them children, pregnant women and the elderly. Confronting poor air quality is a human rights issue. Read the letter to governments. Read and sign the citizen petition. pRESS CONTACTS Victor Quintanilla (Mexico), AIDA, [email protected], +521 5570522107 Fabiola Nuñez, NRDC, [email protected], +1 (646) 889-1405 Renata Assumpção (Brazil), Instituto Alana, [email protected] Ricardo Ruiz (Mexico), CEMDA, [email protected], +5215559644162
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A Plan to Decontaminate Our Cities and Contain the Climate Crisis
In an open letter made public at COP25, more than 100 organizations from Latin America and around the world urged governments to include ambitious and measurable targets for confronting air pollution in their new climate commitments, which must be submitted to the United Nations by March 2020.Join the Global Call for Clean Air! SIGN NOW!Read it in Spanish In Portuguese Poor air quality is the environmental problem that claims the most lives worldwide.Each year, more than four million people die from the health damages caused by air pollution. Official data shows that, globally, nine out of ten people breathe polluted air, and that the problem affects more than 80 percent of urban residents. The majority of those affected are in developing countries and the damages most severely impact the most vulnerable sectors of the population: children, pregnant women and the elderly.At the same time, humanity is seriously threatened by a climatic emergency whose impacts are also suffered with greater force by the most vulnerable segments of the population.Both problems, the climate crisis and poor air quality, are related to the atmosphere around us and are a matter of human rights. In this sense, there is an efficient way forward on both fronts. It’s an opportunity we must seize, and it has to do with reducing emissions of short-lived climate pollutants (SLCPs).Short-lived climate pollutants are atmospheric agents that contribute to the climate crisis with much more intensity than carbon dioxide (CO2) and, as their name indicates, remain in the atmosphere a relatively short time, from days to decades—unlike CO2, which can last millennia in the atmosphere. In addition, these pollutants degrade air quality, affect glacial areas and reduce crop yields. They include black carbon, methane, tropospheric ozone and hydrofluorocarbons (HFCs).Aiming to mitigate them implies reducing global warming in the short term and, at the same time, advancing in the decontamination of cities.This opportunity has already been supported by science.The United Nations Intergovernmental Panel on Climate Change (IPCC), which brings together experts on the subject, stressed in its Special Report on 1.5°C that, in order to confront global warming, we must incorporate into our efforts the mitigation of pollutants other than CO2, specifically black carbon and methane.Recently, more than 11 thousand scientists from around the world joined the call. In a public declaration recognizing the climate emergency, they identified among the measures necessary to solve it the prompt reduction of short-lived climate pollutants, noting that this would reduce warming by more than 50 percent in the coming decades.The forthcoming update of Nationally Determined Contributions (NDCs)— containing the climate commitments that governments must submit to the United Nations Framework Convention on Climate Change (UNFCCC)—opens the possibility of betting on the mitigation of these pollutants and contributing effectively to the fight against the climate crisis and poor air quality.The deadline for governments to submit new and more ambitious Nationally Determined Contributions is March 2020.For all of the reasons stated above, the undersigned organizations consider that the States that are part of the UNFCCC must respect human rights, protect them with the highest standards, and consider them in their climate commitments.In this sense, we ask that governments:Include ambitious and measurable targets for the reduction of short-lived climate pollutants in the update of their NDCs by March 2020.Detail in their commitments the means of implementation, which must ensure compliance with the targets they set.Frame the fulfillment of commitments in comprehensive policies that recognize the different levels of impact among the population, with special emphasis on the protection of children and other vulnerable groups.Specify the monitoring, reporting and verification procedures that will accompany the implementation of their commitments.Ensure that local governments and companies respect the policies established and adapt their actions to the urgent need to improve air quality. Download the letter
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Air pollution: it damages your health from day one
Although they occur seasonally each year, respiratory diseases are becoming increasingly severe, said pediatrician Gina Pinilla, who works in Bogotá. As air quality decreases, health complications increase for children who come to the emergency department. What Dr. Pinilla has observed in more than a decade of experience as a doctor is no mere impression. A study conducted by a multidisciplinary team of researchers in Colombia shows that health damage from poor air quality is noticeable from day one. Hospital admissions increase over the first 24 to 72 hours and can extend for almost two weeks. It’s the first multi-city study conducted in Colombia and Latin America to determine the relationship between air pollution and respiratory and circulatory diseases in the population, explained lead researcher Dr. Laura Rodriguez of the Industrial University of Santander. Each contaminant affects us differently One of the findings that most caught the researchers' attention is that harms caused by pollutants are different for children and adults. Children suffer from respiratory diseases, while adults face cardiovascular complications. "Children between 5 and 9 years old face greater impacts and are more likely to have an episode that takes them to the emergency room,” explained Dr. Rodriguez. “But this doesn't mean that the younger ones are unaffected. When a child has respiratory complications, he or she may stay hospitalized for up to a week and be connected to respiratory support. "There are children who need prolonged hospitalizations. For a week, they are dependent on oxygen, whether from a nasal cannula or oxygen machines,” Dr. Pinilla added. “Then they are left with side effects and get sick often." The particular mixture of pollutants found in the air also affects each age group differently. "Pollution in every city has its own behavior: interaction, quantity and the change in makeup between cities," said Dr. Rodriguez. In Bogotá, for example, pollution by sulfur dioxide and particulate matter (PM10 and PM2.5) are related to circulatory diseases in people over 60. Pollution by nitrogen dioxide, sulfur dioxide and PM2.5 particles significantly increases the risk of hospitalization in people under the age of 15. The researcher says that the damage caused by nitrogen dioxide is not given much importance, despite being associated with cardiovascular disease in adults. And, when that pollutant is combined with sulfur dioxide and particulate matter, its effects are enhanced. Pollution harms, even in small quantities An important takeaway from this study is that contaminants can begin to damage public health even before they reach maximum allowable limits. Nitrogen dioxide, for example, is considered harmful, yet regulations have set very high emission limits. "Reaching these limits is very difficult. The city has to be in absurdly high pollution for the alerts to sound," explained Dr. Rodriguez. “The health effects are not related to whether you are exposed to the limits or not, but to the type of mixture you are breathing, because the pollutants are potentiating each other.” In several Latin American cities, regulations allow pollution limits that exceed the recommendations of the World Health Organization (WHO). For example, the WHO recommends a maximum average of 20 µg/m3 (micrograms per cubic meter) of PM10 (solid particles such as ash, soot and dust), but Bogotá has an average of 38 µg/m3. Other cities in the region have even higher annual averages: 40 (Monterrey), 55 (Mexico City), 62 (Lima) and 69 (Santiago). What does this information mean for your city? When poor air quality reaches its most critical levels, hospitals are left without beds and many children with respiratory illnesses remain in the emergency area, explained Dr. Pinilla. It's a common situation because there are no action plans for environmental contingencies. For Dr. Laura Rodriguez, the most important result of her research would be that it helps institutions take action to confront the issue. She recommends local governments and health institutions: Control and regulate the air quality parameters of industrial emissions, and consider monitoring other pollutants. Increase efforts to communicate to the public about the risks of pollution levels in their cities. Prepare hospitals, especially in the first months of the year when pollution reaches its highest level, aggravated by changes in the climate. She emphasized the importance of making intersectoral and multidisciplinary plans and investigations to understand the panorama of air pollution, and to ensure that this information gets into the hands of the appropriate authorities. The study was also conducted by Julián Alfredo Fernández-Niño (U. del Norte, Barranquilla), Néstor Rojas (U. Nacional), Luis Camilo Blanco (U. Santo Tomás) and Víctor Herrera, U. Autónoma de Bucaramanga). Consult it here.
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