Глобальное потепление превращает экологические угрозы в прямую угрозу здоровью людей

by Dr Ishma Harford We do not usually think of a dead coral reef as a health problem. Or a deforested hillside. Or a warming ocean. These feel like environmental concerns, someone else’s department, a different conversation. But that boundary is fiction, and the proof has solidified into what is now known as One Health. One Health is the recognition that human health, animal health, and environmental health are interconnected. When a virus jumps from a bat colony disturbed by deforestation, it arrives in a human hospital. When a river is too polluted to sustain fish, protein disappears from someone’s diet, and risk of malnutrition may worsen. The chain of consequences is real and measurable. Today, we focus on one of the most consequential examples of our generation: a warming planet. The science is settled. Decades of fossil fuel dependence and industrial activity have loaded the atmosphere with greenhouse gases, and the chickens are coming home to roost. What does that mean for your health? In 2025, The Lancet published, “the average person on earth endured 16 dangerous heat days that would not have occurred without climate change. Heat now kills an estimated 546,000 people every year, a figure that has climbed 23% since the 1990s.” The projections have become a reality. The tropics have always been particularly vulnerable to heat-related illness. When the environment becomes too hot for too long, the body’s cooling mechanisms fail, and the heat overwhelms our organs. This can affect any one of us, but our most vulnerable — infants, the elderly, outdoor labourers, those with pre-existing conditions — stand the highest risk. Europe is learning the same lesson with far less preparation. Countries built for cool, grey weather have recorded temperatures their world was never designed for. Another consequence is worsening weather. A warmer atmosphere holds more energy, which feeds storms and hurricanes. Droughts intensify and extend. For Grenada and the wider Caribbean, already among the most disaster-exposed regions on earth, the risk to our material and physical wellbeing is acute. This has consequences for not only physical safety, but food security and long-term economic implications, as seen in the aftermath of Hurricanes Ivan and Beryl. The global trend towards systems thinking is allowing us to see the consequences of a highly integrated and intimately interconnected world. The world is investing in resilience and sustainability, and Grenada must not be left behind. So, does the health of the planet truly exist in a silo, when a degraded environment turns a manageable heatwave into a localised health crisis, or when a dying coral reef can no longer buffer our shores from the inevitable storms of the Atlantic. For island nations like Grenada, our vulnerability is compounded by economic realities; we cannot simply mandate our way out of this crisis or blindly adopt global agendas that ignore our developmental needs. But we also cannot afford inaction. True One Health for the Caribbean means fighting for practical, localised resilience. It means protecting our ecosystems so they can protect us, securing affordable and sustainable resources that lift our most vulnerable out of poverty, and recognising that safeguarding our environment is not a luxury for tomorrow, but the very foundation of our public health today. Dr Ishma Harford is a medical doctor and a Commonwealth Scholar completing a master’s degree in Health Analysis, Policy and Management. The Health Imperative is an educational, non-partisan column about health, the system that delivers it, and all the implications in between.