<s>[INST] What can the global response to COVID-19 teach us about our response to climate change? [/INST] 
The COVID-19 pandemic is a Public Health Emergency of International Concern (PHEIC), which has claimed lives, and severely disrupted communities. Climate change is a gradually increasing stress that may be the defining public health threat of the 21st century. Nonetheless, common lessons can be drawn:

Ensuring universal health coverage (UHC), through well-resourced, equitable health systems, is essential to protect the public from both short and long-term health threats.
Guaranteeing global health security requires an all-hazards approach to preparedness, from infectious disease outbreaks, to extreme weather events, to climate change.  
Ensuring access to the environmental determinants of health, such as clean air, water and sanitation, safe and nutritious food, is an essential protection against all health risks. WHO estimates that avoidable environmental risks cause about a quarter of the global health burden.
Early action saves lives. Delay in responding to clear evidence of threats, whether from pandemics, or from climate change, increases human and socioeconomic costs.
Inequality is a major barrier in ensuring health and wellbeing, especially for the most vulnerable in society. Social and economic inequality manifests in unequal health risks. When faced with public health threats of a global scale, such as COVID-19 or climate change, we are only as strong as our weakest health system. Source: WHO. Link: https://www.who.int/emergencies/diseases/novel-coronavirus-2019/question-and-answers-hub/q-a-detail/coronavirus-disease-covid-19-masks. Field: Infectious Disease. Disease: COVID </s>