2050 (MML) will be a common year starting on Saturday of the Gregorian calendar, the 2050th year of the Common Era (CE) and Anno Domini (AD) designations, the 50th year of the 3rd millennium, the 50th year of the 21st century, and the 1st year of the 2050s decade.
Predicted and scheduled events
- In July 2008, the G7 agreed to reduce global greenhouse gas emissions by half in 2050.
- In November 2006, Achim Steiner, executive director of the United Nations Environment Program, “warned of a global collapse of all species being fished, if fishing continues at its current pace.”
- In March 2006, Professor Gerry Gilmore predicted that ground-based astronomy would become impossible by this year because of pollution from aircraft exhaust trails and climate change.
- Arnulf Jaeger-Walden of the European commission's Institute for Energy believes that solar power from North Africa can provide 100 GW to the entire continent of Europe.
- Under a plan announced in July 2016, New Zealand aims to eradicate all non-native rats, opossums, and weasels by this year.
- A time capsule in Rachel, Nevada is set to be opened in this year. 
- In November 2001, the United Nations Population Fund reported that the world population is projected to be 9.3 billion in 2050 from 6.1 billion then with most of the increase in developing countries even as the population of industrialized countries will "remain stable". This figure was revised to 9.1 billion in 2005 and 9.2 billion in 2007. In 2008, the United States Census Bureau projected a world population of 9.5 billion.
- Another study done by the European Commission, community research stated that the world population is expected to grow at a decreasing rate to 8.9 billion in 2050 and after 2030, the population in several countries including those in Europe and China will decrease. Stabilization in the population will happen in the second half of the century.
- It is calculated there will be 601,000 centenarians (people at least a hundred years old - born before 1950) in the United States by 2050.
- "The population continues to grow but at a slower pace", summarizes the demographer Thomas Buettner, author of UN report on "World population projections (1950-2050)", presented Thursday, February 24, 2005. According to this study, 9.075 billion people will inhabit Earth in 2050, against 7 billion today.
- This increase amounts to adding to the current world population the combined populations of China and India, stresses the population division of the United Nations.
- The general trend is, however, a slowdown in population growth compared to gains of twenty to fifty years, this tends to confirm a gradual stabilization of the overall population.
- Not surprisingly, population growth will be highest in poor countries already struggling to provide food security for its people. "Births planning and fertility decline explain this difference", stresses the UN report.
- The United Nations predicts that 2 out of every 9 people in the world will be 60 years or older. World life expectancy at birth is also expected to exceed 76 years.
- Kuhn, Anthony (2008-07-08). "G-8 pledges to halve emissions by 2050". NPR. Retrieved 2008-09-21.
- Kanter, James (2007-10-26). "U.N. Warns of Rapid Decay of Environment". The New York Times.
- "Telescopes 'worthless' by 2050". BBC News. 2006-03-02. Retrieved 2008-09-21.
- Alok Jha (July 22, 2008). "Saharan sun to power European supergrid". London: guardian.co.uk. Retrieved January 6, 2010.
- Ramzy, Austin (July 25, 2016). "New Zealand Vows to Wipe Out Rats and Other Invasive Predators by 2050". The New York Times. Retrieved July 25, 2016.
- "ID4 - Rachel, Nevada - Time Capsules on Waymarking.com". www.waymarking.com. Retrieved 2019-01-20.
- "U.N. Says Four Billion Will Be Living in Hunger by 2050". The New York Times. 2001-11-08. Retrieved 2008-09-21.
- "Total Midyear Population for the World: 1950-2050". U.S. Census Bureau. December 15, 2008. Archived from the original on December 15, 2007. Retrieved March 30, 2009.
- "Microsoft Word - WETO-H2 report-final.doc" (PDF). Retrieved 2013-03-18.[permanent dead link]
- National Geographic, November 2011.
- "The World at Six Billion" (PDF). United Nations. Archived from the original (PDF) on July 6, 2010. Retrieved January 6, 2010.
- U.S. Census Bureau: Population Prediction (by country)
- Guardian article on Spains shrinking coastline