The overall size of deserts is increasing. Around 46,000 square miles of land are turned into desert every year. This is as a result of climate change and human activities like clearing forests.
Although it is one of the driest places on earth (with less than 20mm of rain per year), the Antarctic Desert contains about 90% of the earth’s fresh water. This water is found in Antarctica’s permanently frozen ice sheet.
Despite seeming deserted, deserts often have an incredibly diverse ecosystem. In fact, the only other places on earth with more diverse ecosystems than deserts are rain forests. Deserts are often home to a variety of plants, mammals, reptiles and insects.
The first dinosaur eggs were discovered in Gobi Desert in 1923. Gobi Desert is located in parts of northwestern China and southern Mongolia. It is the fifth-largest desert in the world. It was created in the shadow of the Himalayas as the tall mountains prevented rain from reaching Gobi.
Did you know? The Gobi Desert is the fastest growing desert in the world. It is expanding by more than 1,300 square miles. Its expansion is attributed to extreme cultivation practices and climate change.
Despite being the driest place on earth, the Atacama Desert supports around 1 million inhabitants. These inhabitants mostly survive by tapping water from aquifers (underground streams) for growing crops. They also raise animals like llamas and alpacas.
The Namib Desert, located in Namibia – Southern Africa is considered the oldest desert in the world. It is considered to be between 55 and 80 million years old. Comparatively, the Sahara – which is between 2 and 3 million years old – is much younger.
The Namib Desert has the tallest sand dunes in the world. Some of these sand dunes are up to 300 meters high. Besides being high, the sand dunes are also extremely spectacular and are a popular attraction for nature lovers.
The Aralkum Desert in Uzbekistan is currently the world’s youngest desert. Created entirely due to man-made disturbances, this desert (which is about 45,000 square kilometers in size) is less than 50 years old.