SUNY Korea
Cause another type of Disaster
Crop Heat Damage
While temperatures up to around 29-32 C can benefit crop growth, yields fall sharply when thermostats rise further.
Some of the crops hit hard by extreme heat include corn, soybeans and cotton. These reductions in yields could be costly for agriculture.
Real Case (click it to watch the video)
Extreme heat can create another type of disaster risk. Heatwaves can cause drought and the drought can cause dry and hot conditions to be met,
which can lead to wildfires.
Also, in cities, the infrastructure of buildings and roads can be heated by 50 to 90 degrees more than the air, and natural surfaces are kept closer
to the temperature.
Rising temperatures across the country pose a threat to people, ecosystems and the economy.
Variety of Diseases
Extreme heat can trigger a variety of diseases.
For one, heat stroke, which is a cause of heatwave, can destroy a human body’s cooling system; this can cause death or permanent disability.
Also, higher temperatures are linked to respiratory problems, because they can cause harmful air pollutants.
Disrupting Railway
Real Case (click it to watch the article)
The temperature rises due to the heatwave, and railroad rails expand in the longitudinal direction, causing the track to bend. The reason why the track is bent is because of the thermal expansion caused by the heatwave.
Thermal expansion, the general increase in the volume of a material as its temperature is increased.
The thermal expansion also affects hard iron, and it causes iron to expand or be contracted. Iron is a metal and has the property of expanding in volume when heated and being contracted again when heat is lost. Due to the continuous heatwave, the volume of railroads change.
