Natural Heritage is understood as representative and exceptional sites, such as certain physical and biological formations (forests, glaciers, islands); the habitat of endangered animal and plant species (reefs, swamps...); and sites or natural areas strictly delimited as national parks.

In 2021, UNESCO includes 213 natural properties on the World Heritage list. The list expands every two years with new assets. Natural heritage has an Outstanding Universal Value that goes beyond borders. Therefore, we must preserve them for future generations. Its degradation or disappearance would be an impoverishment of the heritage of all peoples in the world.

Let's look at some examples of the Planet's Natural Heritage:

- Sian Ka'an, on the east coast of the Yucatán Peninsula (Mexico) is a biosphere reserve that includes tropical forests, mangroves, swamps and a vast marine area crossed by a barrier reef. More than 300 different species of birds and a large number of unique terrestrial vertebrates live here.

- Los Katios National Park, located in northwestern Colombia, has exceptional biological diversity and is home to several species of endangered animals, in addition to numerous endemic plants.

- The main beech forests of the Carpathians and other regions of Europe. This transnational natural heritage, shared by 12 European countries, is composed of more than fifty forests, mainly beech. These forests are a sampling of the former temperate old-growth forests that once occupied much of the European continent.

- The Galapagos Islands, located in the Pacific, more than a thousand kilometers from Ecuador, are a group of nineteen islands of volcanic origin whose surroundings of the marine reserve are a living museum and a laboratory of evolution. The evolving geological and geomorphological processes that help to understand the mysterious origins of these islands can still be studied.

These 4 examples are heritage of all humanity. In other words, although the 4 properties are in Mexico, Colombia, Ecuador and in 12 European countries, they are Natural Heritage for all peoples in the world. Therefore, its conservation and care are of vital importance for humanity.