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This is a list of sovereign states in the 2020s, giving an overview of states around the world during the period between 1 January 2020 and the present day. It contains 210 entries, arranged alphabetically, with information on the status and recognition of their sovereignty. It includes 195 widely recognized sovereign states, two associated ...
State of nature. In ethics, political philosophy, social contract theory, religion, and international law, the term state of nature describes the hypothetical way of life that existed before humans organised themselves into societies or civilizations. [1] Philosophers of the state of nature theory propose that there was a historical period ...
States of Nature: Conserving Canada's Wildlife in the Twentieth Century is a 2006 book by Canadian historian Tina Loo.The book analyzes the history of nature conservation in Canada throughout the 20th century, paying particular attention to the contributions of and interactions between both state and private actors, effectively tracing "shifting and conflicting attitudes toward the natural ...
In 2019, Beijing was the city in the world with the largest scientific output, accounting for 2.8% of the world's total. [2] New York City was second in the world, with about 2% of the world's total. Overall, the United States has the most cities in the top 100 list, followed by China.
Africa. Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km 2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth 's land area and 6% of its total surface area. [9] With nearly 1.4 billion people as of 2021, it accounts for about 18% of the world's human population.
The dominant customary international law standard of statehood is the declarative theory of statehood, which was codified by the Montevideo Convention of 1933. The Convention defines the state as a person of international law if it "possess[es] the following qualifications: (a) a permanent population; (b) a defined territory; (c) government; and (d) a capacity to enter into relations with the ...
The world is the totality of entities, the whole of reality, or everything that exists. [ 1 ] The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique, while others talk of a "plurality of worlds". Some treat the world as one simple object, while others analyze the world as a ...
The current world population growth is approximately 1.09%. [7] People under 15 years of age made up over a quarter of the world population (25.18%), and people age 65 and over made up nearly ten percent (9.69%) in 2021. [7] The world population more than tripled during the 20th century from about 1.65 billion in 1900 to 5.97 billion in 1999.