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World Environment Day was established in 1972 by the United Nations at the Stockholm Conference on the Human Environment (5–16 June 1972), that had resulted from discussions on the integration of human interactions and the environment. One year later, in 1973, the first WED was held with the theme "Only One Earth".
World Hippopotamus Day [15] February 15 International Polar Bear Day: February 27 World Wildlife Day: March 3 International Day of Action for Rivers: March 14 World Consumer Rights Day: March 15 Buzzards Day [16] [17] March 15 Digital Cleanup Day [18] March 15 2025 National Panda Day [19] [20] [21] March 16 Global Recycling Day [22] March 18 ...
UNESCO's involvement in environmental awareness and education goes back to the very beginnings of the Organization, with the creation in 1948 of the IUCN (International Union for the Conservation of Nature, now the World Conservation Union), the first major non-governmental organization (NGO) mandated to help preserve the natural environment.
The natural environment, commonly referred to simply as the environment, is all living and non-living things that occur naturally on Earth or some part of it (e.g. the natural environment in a country).
Photopic vision is the vision of the eye under well-lit conditions (luminance levels from 10 to 10 8 cd/m 2). In humans and many other animals, photopic vision allows color perception , mediated by cone cells , and a significantly higher visual acuity and temporal resolution than available with scotopic vision .
I. International Dark Sky Week; International Day for Biological Diversity; International Day for Preventing the Exploitation of the Environment in War and Armed Conflict
The natural environment, commonly referred to simply as the environment, includes all living and non-living things occurring naturally on Earth.. The natural environment includes complete ecological units that function as natural systems without massive human intervention, including all vegetation, animals, microorganisms, soil, rocks, atmosphere and natural phenomena that occur within their ...
Light pollution is the presence of anthropogenic artificial light in otherwise dark conditions. [12] [13] [14] [15]The term is most commonly used in relation to in the outdoor environment and surrounding, but is also used to refer to artificial light indoors.