Page 8 of the rulebook ...
3) Action phase (see page 9)
Players take 1 or 2 actions each turn, or pass. Play
proceeds clockwise around the table until all players have
passed. The actions may be combined in any way the player
chooses. The available actions are:
A) Play a card from your hand (see page 9).
B) Use a standard project (see page 10).
C) Claim a milestone (see page 10).
D) Fund an award (page 11).
E) Use the action on a blue card (see page 11).
F) Convert 8 plants into a greenery tile (which gives an oxygen
increase) as described on the player board (see page 11).
G) Convert 8 heat into a temperature increase as described
on the player board (see page 11).
You can choose to take 1 or 2 actions on your
turn. If you take no action at all (pass), you are out of
the round and may not take any anymore actions this
generation. When everyone has passed, the action phase
Somehow my first game last night I missed part of that rule. My wife and I were only taking 2 actions a generation as well. We were stockpiling so many resources we gave up on the production phase towards the end of the game!
After our game we discussed and found out how badly we were screwing up. I'm really excited for this game tonight as we play it CORRECTLY!