Lämpöshoki

Lämpöshoki, also known as heatwave, is a prolonged period of excessively hot weather, which may be accompanied by high humidity, especially in oceanic climate countries. Heatwaves are typically measured relative to the usual weather in the area and define as a period of abnormally high temperatures, more than the normal maximum temperature that is expected on average for that period. Heatwaves can occur with or without high humidity, but in combination with high humidity, they are often more dangerous.

Heatwaves can cause significant impacts on human health, agriculture, and the environment. They can lead to heat exhaustion, heatstroke, and even death, especially for vulnerable populations such as the elderly, young children, and those with pre-existing health conditions. In agriculture, heatwaves can reduce crop yields, damage livestock, and increase the risk of wildfires. In the environment, heatwaves can cause droughts, which can lead to water shortages and damage to ecosystems.

Heatwaves are becoming more frequent and intense due to climate change. According to the Intergovernmental Panel on Climate Change (IPCC), the frequency and intensity of heatwaves have increased in recent decades, and this trend is expected to continue in the future. The IPCC also reports that heatwaves are expected to become more frequent and intense in the future, with the most significant impacts expected in the tropics and subtropics.

To mitigate the impacts of heatwaves, it is important to take steps to reduce greenhouse gas emissions, which are the primary driver of climate change. Additionally, communities can take steps to adapt to heatwaves, such as improving public health infrastructure, implementing heat action plans, and promoting heat-resistant crops and livestock.