The 2020s (pronounced "twenty-twenties" or "two thousand (and) twenties", shortened to "the '20s") is the upcoming decade in the Gregorian calendar that will begin on 1 January 2020, and will end on 31 December 2029.
Notable predictions and known events
- The interaction of the three main decadal solar cycles suggests an upcoming reduction in solar activity, with a low-energy period centered on 2020. As suggested by John Maddox of Nature, this might mitigate the global warming trend (at least temporarily) in the 2020s.
- Assuming that the Atlantic multidecadal oscillation runs through a 70-year quasi-cycle (after peaks in 1880 and 1950), its current warm phase is likely to reach its peak.
- NASA plans to send a human mission to the Moon via the Artemis program.
- Voyager 1 and Voyager 2 are expected to stop transmitting back to Earth in the 2020s.
- SpaceX plans to send humans to Mars with their new system in development, Starship.
- SpaceX will conduct their #dearMoon project, which will take people in a free-return trajectory around the Moon.
- By the mid-2020s, the world population is projected to surpass 8 billion people, half a billion more than the 2017 population of 7.5 billion.
- By 2022, India is projected to surpass China as the most populated country on Earth.
- The Mars-Grunt sample return mission is proposed to launch in the mid-2020s.
In popular culture
- Berger, Wolfgang H.; et al. (2002). "A Case for Climate Cycles: Orbit, Sun and Moon". Climate development and history of the North Atlantic realm. Berlin: Springer. pp. 101–123. ISBN 3-540-43201-9.
- Maddox, John (1995). "Natural antidote to global warming?". Nature. 377 (6546): 193. doi:10.1038/377193a0.
- Curry, Judith A. (2008). "Potential Increased Hurricane Activity in a Greenhouse Warmed World". In MacCracken, Michael C.; Moore, Frances; Topping, John C. (eds.). Sudden and disruptive climate change. London: Earthscan. pp. 29–38. ISBN 1-84407-478-1.
Assuming that the AMO continues with a 70-year periodicity, the peak of the next cycle would be expected in 2020 (70 years after the previous 1950 peak).
- Enfield, David B.; Cid-Serrano, Luis (2010). "Secular and multidecadal warmings in the North Atlantic and their relationships with major hurricane activity". International Journal of Climatology. 30 (2): 174–184. doi:10.1002/joc.1881.
- "Voyager – Spacecraft – Spacecraft Lifetime". NASA Jet Propulsion Laboratory. 2003-01-14. Archived from the original on 27 October 2007. Retrieved 2007-11-04.
- see various projections and sources at World population estimates
- "India 'to overtake China's population by 2022' - UN". BBC News. 2015-07-30. Retrieved 2017-06-03.
- Media related to 2020s at Wikimedia Commons