In May 1986 the monthly average concentration of carbon dioxide measured at Mauna Loa, Hawaii, reached 350.5 parts per million for the first time. Before the Industrial Revolution the air held about 280 ppm, a level that ice cores show had not been exceeded for hundreds of thousands of years. The NOAA record shows the concentration climbing a little faster almost every decade. It took place in May 1986.
Before and after
- 27 March 1986Birth of Manuel Neuer
- 11 April 19861986 FBI Miami shootout
- 14 April 1986Death of Simone de Beauvoir
- 26 April 1986Chernobyl disaster
- May 1986Carbon dioxide passes 350 ppm at Mauna Loa
- 16 May 1986Birth of Megan Fox
- 3 June 1986Birth of Rafael Nadal
- 14 June 1986Death of Jorge Luis Borges
- 22 June 1986Maradona's two goals against England
More in Earth & climate
- 1985The Antarctic ozone hole is discovered
- 26 December 20042004 Indian Ocean earthquake
- 12 January 20102010 Haiti earthquake
- 11 March 20112011 Tōhoku earthquake and tsunami
- 6 February 20232023 Turkey–Syria earthquakes
- 28 March 20252025 Myanmar earthquake
The era
This moment belongs to the Contemporary world (1945 CE to today), the world since 1945. You can also browse everything in the 20th century.