LIFE DEPENDS ON WATER AND OVERHEATS cause water to evaporate and disappear more rapidly. Some parts of the Earth are always hot and dry. To survive in these areas you need to be very experienced and equipped. However, the Earth’s climate is changing and it is difficult to predict which regions will be hot and dry in the future. During temperature waves, the thermometers show record temperatures, water supplies dry quickly, forest fires are triggered and soil cracks. Wild animals and plants are equipped to survive such catastrophes, but people begin to experience serious problems as the temperature rises.
The HUMAN BODY is surprisingly resistant to extreme weather conditions. In extreme temperatures, healthy people can tolerate up to 400C if they drink enough water. However, if the air is both hot and humid, the body’s natural cooling system starts to collapse. This results in a heat stroke. Failure to seek immediate medical attention in case of heatstroke can result in death. The majority of cases of heatstroke occur in people outdoors without water or shade. However, during heat waves, heatstroke affects people everywhere, including people in homes and streets.
In 2003, in the heatwave in Europe, this misty fog that collapsed over Paris did not rise for days. The temperature in Western European countries has reached record levels. Air pollution made the situation worse. At first, nobody understood how dangerous the heat could be. But when the heatwave ended, European health records showed that 30,000 people were killed.
Unlike animals, plants cannot escape from the rays of the sun. To survive, many plants have green trunks and branches that hold water. This cactus from America’s the Mojave Desert blooms in early spring because early spring is a rare rainfall in the desert.
In hot and dry weather, your body may lose up to 4 liters of sweat. This amount is twice the amount of cool air. To stop water loss in your body, you should drink more water than ever, even if you don’t feel thirsty. Wear light and comfortable clothing and stay in the shade as much as possible. Wear a hat or umbrella when going out. If the weather is hot and humid, try not to move too much or force yourself. Heavy bodily movements cause your body to warm up quickly in humid weather.
Staying Cool is Important
The desert is hot during the day and often very cold at night. Therefore, small mammals, for example, go out after the sunsets. In desert countries, people often follow the same method.
Some creatures are aware of how valuable the shade is, and the Cape ground squirrel in the Kalahari Desert uses its tail as a portable canopy. Wherever you go, you won’t be missing out on the shade while eating.