Imagine You Are Investigating the Possibility That Algae Can Grow

Imagine you are investigating the possibility that algae can grow on clouds in the upper atmosphere. First you must determine how to sample NPP and predict how NPP in clouds would affect terrestrial and marine systems. What would be the most efficient way to determine the amount of GPP produced by these hypothetical cloud algae? Would you predict that these hypothetical cloud algae would have a positive or a negative impact on the productivity of surface-level biomes (terrestrial and marine)? Describe the predicted relationship, and explain why you think the productivity of the aerial and surface systems would exhibit this pattern.