The Union of Concerned Scientists (UCS) has been at the forefront of advocating for a sustainable, resilient, and healthy food and farm system in the United States. A key focus of their advocacy work is the need for US agriculture to reduce its reliance on synthetic fertilizers, which have detrimental impacts on both people and the environment.
In the coming years, UCS will be shedding light on the fertilizer industry and its far-reaching effects on communities and ecosystems. Fertilizer production involves a complex global supply chain, with various chemical processes that can harm both human health and the environment. These harmful effects are often compounded by exposure to other pollutants, creating what is known as cumulative impacts.
The concept of cumulative impacts is crucial for improving environmental protection regulations in the US, as it considers the combined effects of multiple stressors on health, society, and the environment. By looking at the overall impact of activities like fertilizer production, regulators can better protect public health. This discussion is particularly timely given recent changes to environmental justice executive orders that previously called for the consideration of cumulative impacts.
Synthetic fertilizers, which are rich in essential nutrients like nitrogen, phosphorus, and potassium, are widely used in agriculture. However, their production is energy-intensive and contributes to global warming emissions. Nitrogen fertilizers, for example, are manufactured using the energy-intensive Haber-Bosch process, which relies on fossil fuels. Phosphorus-based fertilizers are derived from mined phosphates, with environmental consequences such as water pollution and habitat destruction. Additionally, potassium, another key nutrient in fertilizers, is often imported from countries like Canada and Russia.
The environmental impact of fertilizer overuse is significant, with excess nutrients leaching into water bodies and causing harmful algal blooms. This leads to oxygen depletion in water, adversely affecting aquatic life. Moreover, the greenhouse gas emissions associated with fertilizer production and application contribute to climate change. To address these issues, there is a need to reduce fertilizer use and transition towards more sustainable agricultural practices.
Fertilizer manufacturing facilities are often located near other polluting industries, leading to environmental justice concerns in communities like Cancer Alley in Louisiana. Toxic waste from these facilities can contaminate water sources, affect air quality, and pose serious health risks to residents. Exposure to pollutants from fertilizer manufacturing can lead to respiratory issues, asthma, and other health problems.
Despite the environmental and health risks associated with synthetic fertilizers, fertilizer production in the US is on the rise. Recent government investments in expanding domestic fertilizer manufacturing raise concerns about prioritizing corporate interests over public health and safety. Moving forward, there is a need for evidence-based policies that prioritize human health and environmental sustainability in agriculture.
As advocates for a resilient and equitable food system, UCS is conducting research to highlight the ecological and public health harms of current agricultural practices. They are also calling for action to protect climate-focused investments and push for policies that prioritize sustainability and equity in the food and farming sector. Joining the UCS Science Network provides an opportunity to support science-based solutions and defend against attacks on environmental protection efforts.
