The UN declares 2020 the International Year of Plant Health. At the end of the "Decade of Biodiversity", the United Nations continues to recognize and promote healthy ecosystems as the key to...

Mountains occupy about 22% of the entire Earth surface. They provide important resources: drinking water, food and energy. The population of the mountain areas has a tradition and culture which are...

Every country, every nation has the great rulers, statesmen, scientists, inventors.