For eons now, those algae, and the plants that evolved out of them, have been constructing themselves out of CO 2 , dying, sinking to the bottoms of swamps and oceans, compressing the carbon they took from the atmosphere into oil and gas and coal.
(the plants; evolved; out of them) (the carbon; took; from the atmosphere; into oil and gas and coal) (those algae, and the plants; have been constructing; themselves; L:out of CO 2; T:now)
the plants the carbon those algae, and the plants
evolved took have been constructing
out of them
from the atmosphere into oil and gas and coal
themselves L:out of CO 2 T:now