The 21st Century
From Halbeeg, the open encyclopedia · Af-Soomaali
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The 21st century is the current century of the Gregorian calendar. By standard calendar reckoning, it began on 1 January 2001 and ends on 31 December 2100. Many people use an alternative system that ties the century to the years 2000–2099; the two methods differ only in their starting and ending years.
The opening decades of this century have been marked by rapid change in information technology, growing world population, and medical advances alongside regional obstacles. The global economy has deepened through globalization, while political power has shifted toward a multipolar arrangement in which new states play greater roles.
Technology and Communication
The Internet and modern smartphones have become the primary tools for communication and commerce. Social media platforms have transformed how news spreads and how political movements organize. In recent years, artificial intelligence—computer systems that learn from large amounts of data and produce text or images—has entered work, education, and news sectors. At the same time, concerns have grown about data privacy, cybersecurity, and the spread of false information.
Environment and Climate Change
Climate change has become one of the most prominent issues in global politics. International agreements, most notably the 2015 Paris Agreement, have urged states to reduce greenhouse gas emissions from fossil fuels. The costs of solar and wind power have fallen, spurring their adoption. Nevertheless, rising temperatures, droughts, and sea-level rise have affected agriculture and human settlement.
Health and Population
The spread of COVID-19, widely recognized from 2020 onward, brought travel restrictions and global economic disruption, spurring rapid vaccine development. World population has reached new heights, though many countries in Europe and East Asia have experienced lower birth rates and aging populations. Cities have continued to expand, with more than half the world's population now living in urban areas.
Politics and Conflict
The attacks of 11 September 2001 on the United States triggered wars in Afghanistan and Iraq and reshaped global security policy. The financial crisis of 2008 shook financial markets. The Arab uprisings of 2011 transformed governments in several North African and Middle Eastern countries. From 2020 onward, the Ukraine war and Middle Eastern conflicts have reshaped energy markets and military alliances.