Climate Perspective
Global dimming affects Korea’s climate system by weakening the water cycle, increasing regional climate instability, and partially masking the effects of global warming. Aerosols and fine dust reduce solar radiation reaching Earth’s surface, altering temperature, precipitation, and cloud formation patterns across the Korean Peninsula. Although these particles can temporarily cool the atmosphere, reducing aerosol levels may unintentionally accelerate surface warming, creating complex climate challenges and long-term environmental uncertainty in Korea.
01
Partial Masking of Global Warming
Global dimming partially masks the effects of global warming by reducing the amount of solar radiation reaching Earth’s surface. During South Korea’s rapid industrialization in the 1970s and 1980s, increased fossil fuel use and industrial emissions significantly increased aerosol concentrations, temporarily limiting surface warming. However, since the 2000s, stronger air pollution regulations and improved monitoring systems have reduced aerosol levels, weakening the dimming effect and making greenhouse warming more visible. As a result, rising temperatures and extreme summer heat in Korea have become more noticeable. This demonstrates the climate paradox of global dimming, where reducing air pollution may unintentionally accelerate warming.
02
Global Dimming and Intensifying Rainfall in Korea
Global dimming is one of the factors that can contribute to extreme precipitation events. Aerosols alter atmospheric heating patterns and temperature differences between land and sea, which can affect air circulation around the Korean Peninsula and disrupt weather systems. As a result, rainfall events can become shorter but more intense, sudden downpours may occur more frequently, and seasonal rain patterns become more unstable. In fact, Korea has recently been seeing fewer rainy days but heavier rainfall when it does rain.
03
Fine Dust and Regional Climate Instability
Fine dust and aerosol pollution are closely connected to regional climate instability in Korea. During spring, large amounts of yellow dust and PM2.5 transported from East Asia scatter sunlight and alter cloud formation, reducing the amount of solar radiation reaching the surface. These atmospheric changes can influence regional temperature patterns, precipitation systems, and seasonal climate variability over the Korean Peninsula. In addition, increasing aerosol concentrations create uncertainty in predicting climate behavior and weather patterns in Korea. Although aerosols may temporarily cool the atmosphere, their overall environmental and health impacts remain severe, contributing to respiratory diseases and long-term climate challenges.