Mitchum, it's totally worth it to save the turns and build Life Support in 1 turn. This is best accomplished by chopping. Two options (there are more) that work great for this task are: 1) chop down your NatPark (assuming it's not all jungle) 2) Drop a late game city in the forest. There should be one somewhere. If you play Terra, which is very ideal for space race, you can always find forests in the new world.