Snow is a natural phenomenon that occurs in various parts of the world. It is a type of precipitation that is formed from frozen water droplets. Snow covers a significant portion of the land surface in many regions during winter months. The coverage of snow varies greatly depending on the location, altitude, temperature, and other climatic factors. In this feature, we will explore the average land covered by snow, its effects on the environment, and how it impacts human life.

Average land covered by snow:

The land area covered by snow varies widely across the world, and it is not possible to provide a precise figure. However, according to recent studies, about 46 million square kilometers of land are covered by snow every year. This area represents around 33% of the total landmass of the earth. Most of the snow-covered areas are located in the polar regions, including the Arctic and the Antarctic. Other regions that experience significant snowfall include mountainous areas and regions located at high latitudes.

Effects of snow on the environment:

Snow plays a crucial role in the earth’s climate and the environment. It has several effects on the environment, including the following:

  1. Regulates the earth’s temperature:

Snow acts as an insulator, trapping heat and preventing it from escaping the earth’s surface. This phenomenon is known as the albedo effect. Snow reflects up to 80% of the sun’s radiation, reducing the amount of heat absorbed by the earth’s surface. This helps to regulate the earth’s temperature and prevent it from overheating.

  1. Water cycle:

Snow is an essential component of the water cycle. It helps to regulate the water flow in rivers and streams, replenish groundwater, and provide a source of freshwater for many ecosystems. During spring and summer months, the snow melts, and the water flows into rivers and streams, providing a source of water for plants, animals, and humans.

  1. Ecosystems:

Snow plays a crucial role in the ecosystems of many regions. It provides insulation for plants and animals, protecting them from extreme temperatures. It also acts as a source of moisture, helping plants to grow and providing habitats for many animals. In some regions, snow helps to preserve the soil’s moisture, preventing it from drying out and reducing erosion.

  1. Transportation:

Snow can significantly impact transportation systems, especially in regions with heavy snowfall. It can cause road closures, flight cancellations, and disruptions to public transport. In some regions, snowfall can make it difficult or impossible for people to travel, impacting their daily lives.

Impact of snow on human life:

Snow has a significant impact on human life, especially in regions that experience heavy snowfall. Some of the effects of snow on human life include the following:

  1. Health risks:

Snow can cause several health risks, especially in elderly and vulnerable populations. Snow can make it difficult to move around, leading to falls and injuries. Prolonged exposure to cold temperatures can also cause hypothermia and frostbite.

  1. Economic impact:

Snow can have a significant economic impact on many industries, including transportation, tourism, and agriculture. Heavy snowfall can cause road closures and flight cancellations, disrupting supply chains and leading to significant economic losses. It can also impact tourism, as people may be less likely to travel to regions that experience heavy snowfall.

  1. Energy consumption:

Snow can increase energy consumption, especially in regions with low temperatures. People may need to use more energy to heat their homes and businesses, leading to higher energy bills and increased carbon emissions.

  1. Recreation:

Snow can also provide recreational opportunities for people, especially in regions that experience heavy snowfall. Activities such as skiing, snowboarding, and ice skating are popular in many regions, providing a source of enjoyment for many people.


In conclusion, the average land covered by snow is significant, covering around 33% of the earth’s land surface. Snow has several effects on the environment, including regulating the earth’s temperature, playing a crucial role in the water cycle, and providing habitats for many ecosystems. However, snow can also have a significant impact on human life, causing health risks, economic losses, and increased energy consumption. Despite its potential drawbacks, snow also provides recreational opportunities and contributes to the beauty of many regions. As we continue to study and understand the effects of snow on the environment and human life, we can better prepare for and adapt to the impacts of snowfall