Global Warming and Its Health Impact.

Area of Science:

• Environmental Science
• Public Health
• Climate Science

Background:

• Human activities since the mid-19th century have elevated atmospheric greenhouse gases (carbon dioxide, methane, nitrous oxide), causing global temperature increases.
• Rising temperatures result in diverse environmental impacts, including soil degradation, desertification, biodiversity loss, ocean acidification, and ozone depletion.

Purpose of the Study:

• To examine the multifaceted impacts of climate change on human health and well-being.
• To highlight the increased vulnerability of low-income populations to climate-related health risks.
• To outline the projected changes in infectious disease patterns due to global warming.

Main Methods:

• Literature review and synthesis of existing research on climate change effects.
• Analysis of reported health outcomes following extreme weather events.
• Examination of the relationship between climate variables and pathogen/vector survival and distribution.

Main Results:

• Climate change exacerbates non-communicable diseases, injuries from natural disasters, malnutrition, and heatwave mortality.
• Reduced agricultural resources, altered pathogen habitats, and increased water/vector-borne diseases pose significant threats.
• Warming temperatures accelerate vector life cycles, expanding the geographical and altitudinal range of diseases like malaria, West Nile virus, and Lyme disease.

Conclusions:

• Climate change presents a substantial and growing burden on global health, disproportionately affecting vulnerable populations.
• The health sector must prioritize the development of robust prevention and adaptation strategies to mitigate the adverse effects of climate change.
• Proactive engagement is crucial to reduce the future costs and health impacts associated with a changing climate.