Abstract
Background
Humans have wandered this planet for hundreds of thousands of years, yet in the last 160 years we have dramatically disrupted planetary systems upon which we depend. Humanity has polluted the oceans, rivers, air and soils. Our persistent burning of fossil fuels to power opulent lifestyles is now perilously close to permanently disrupting global climatic systems.
Problem
It is clear. The problem is us. Australia's summer of horrors provides a terrifying glimpse into our collective future. This rich and exquisitely advantaged nation has voted for governments that have ignored fragile ecosystems, dismantled environmental protection laws, ignored climate science and expanded its fossil fuel exploration, extraction, consumption and exportation. It has systematically silenced science, ignored its duty of care to protect its present and future citizenry.
Evidence
The 2019-2020 summer brought unprecedented disasters to a country familiar with disasters. After the hottest and driest year on record came the world's largest bushfire, which started in winter, and burned uncontainable for 7 months across 5 states. Billions of animals perished, thousands of homes & businesses destroyed, 33 people burned alive. Continental-wide temperatures of 42oC. Smoke levels exceeded hazardous levels by a factor of 25, lingered 6weeks in the national capital, circumnavigated the southern hemisphere. 80% of Australians were affected by the fires in some way, and the nation fell into a deep grief.
The public health challenge
As the world faces new climate regimes, the associated health challenges are elevating to unheralded and unforeseen levels. Public health preparedness for past situations will inevitably fail. Events are no longer singular, short lived or readily managed. Today's events are multifaceted, expansive and protracted. Their sheer magnitude and scale prevent response activities, interrupt transport and supply chains and shut down power and communications.
Key messages
Unfettered human development has degraded planetary systems upon which humanity depends for survival and flourishing. Climate change is disrupting all our key environmental determinants of health. Environmental degradation and climate change now present a rapidly intensifying health emergency. Australia’s summer of disasters demonstrates we need an explosion of public health preparedness.
Australia’s 2020 summer shows our changed climate future - a public health preparedness challenge
