| 16 January 2012 |
Nominations Open |
| 16 March 2012 |
Nominations Close |
| 20 April 2012 |
Nominations sent to Union Awards, Medals, and Climate Communication Prize Committees for review. |
| 29 June 2012 |
Union Awards, Medals, and Climate Communication Prize Committees recommendations due to Council Leadership Team for approval. |
| 6 July 2012 |
Council Leadership Team meeting for approval of 2012 awardees, medalists, and climate communication prize recipient. |
| 13 July 2012 |
Union awardees, medalists, and climate communication prize recipient notified by Union President. |
| 31 July 2012 |
Headquarters notifies all nominators, Board, Council, AGU membership and public of the 2012 class of Union medals, awards, and climate communication prize recipient. |
| 8 December 2012 |
AGU Honors Ceremony held during the Fall Meeting. |