Drought is a severe lack of rain or snow that affects both people and nature. It is a natural phenomenon that occurs worldwide, but the severity of drought events increases with climate change.

Drought can be caused by changes in wind patterns that move clouds and moisture around the globe. The pattern of the jet stream can change for a variety of reasons. If the jet stream takes a detour and stops bringing cloud cover, then areas that usually get rain will experience a drought. It can also happen if an area is overused by humans. For example, if there is no water for irrigation and the soil dries out, farmers might have to sell their crops and go without food.

The negative impacts of drought can include lowered agricultural yields and even famine, as well as high energy prices due to water shortages that increase the cost of utilities and electricity. It can also damage infrastructure and cause problems with supply chains, such as transporting goods by truck or by water.

A drought can also harm health. For instance, the dry soil and wildfires that often accompany drought increase airborne particulates that can irritate the lungs, making respiratory illnesses worse. Additionally, the dry conditions can lead to bacterial infections such as bronchitis. People can protect their health by staying hydrated, eating healthy foods, and taking medications to manage their symptoms.