At COP30 in Belém, Sandra Hacon, a researcher from Fiocruz and an expert in environmental health, shared her insights on the crucial link between climate, environment, and health. With a background in biology and ecology, Hacon has dedicated her career to understanding how climate change impacts public health. Since 2005, she has focused on the effects of climate change on health, particularly how issues like deforestation and social inequalities make people more vulnerable to diseases.
Hacon emphasized that a healthy environment is essential for human well-being. She believes that environmental health assessments are vital for understanding the impacts of major projects and ongoing ecological changes. For instance, deforestation in the Amazon isn’t just about cutting down trees; it disrupts the hydrological cycle, contributes to pollution, and causes biodiversity loss.
Current discussions on climate often overlook the health implications. For years, health was barely mentioned in climate reports, even from the Intergovernmental Panel on Climate Change until around 2007. Many communities, like forest peoples and indigenous groups, have long understood that health and the environment are interconnected. Hacon argues that it’s time everyone recognized this link.
Interestingly, as global awareness of climate issues grows, public health remains a latecomer to the conversation. For example, recent data indicates that Brazil is facing a surge in diseases like dengue fever and chikungunya, exacerbated by climate shifts. When temperatures rise, conditions become perfect for these diseases to thrive—leading to increased cases that weren’t as common before.
Brazil recently reported the highest incidence of chikungunya in Latin America, with extreme weather patterns contributing to its spread. Outbreaks can be linked to environmental factors like rainfall and temperature changes. Hacon noted that many viruses respond quickly to environmental shifts, adapting to find new hosts and spreading more rapidly.
Despite these challenges, organizations like Fiocruz are working on developing vaccines and interventions. However, Hacon warns that healthcare systems are often reactive rather than proactive, leading to gaps in public health readiness. Current infrastructure is not sufficiently prepared to swiftly respond to the changing landscape of diseases linked to climate change.
Prevention measures are still lacking, especially in Brazil and Latin America. There’s an urgent need for a cultural shift toward proactive behavior. For example, Fiocruz developed an app to help monitor animal health among forest communities. This early warning could prevent outbreaks like yellow fever, which often starts in non-human primates.
Finally, Hacon called for increased focus on newly contacted indigenous populations, who are particularly vulnerable. Effective monitoring of these communities should be prioritized to prevent the spread of emerging diseases. Even though Brazil has the resources and expertise to lead in this area, political will and adequate funding are often missing.
At COP30, it was evident that many attendees were unaware of the ties between health and climate issues. Hacon noted the discomfort some individuals experienced due to the heat and humidity, particularly those with preexisting health issues. This highlights the urgent need to center discussions around health in climate conversations.
Linking climate, environment, and health is essential for developing effective policies that can protect both people and ecosystems. Only by recognizing and addressing these connections can we hope to create a sustainable future for all.
