Final answer:
An increase in the retirement age would not expand renewable energy, unlike factors such as new renewable discoveries or a decline in solar energy prices which could lead to expansion.
Step-by-step explanation:
The scenario that would NOT expand renewable energy is if there is an increase in the retirement age. An increased retirement age does not directly influence the expansion of renewable energy infrastructure. However, a recent discovery of new renewable energy, a decline in the price of solar energy, and a surge in development due to a new kind of plastic derived from oil are factors that could potentially expand renewable energy use. For instance, new renewable energy discoveries often lead to more investment and expansion in the sector, while a dramatic fall in solar energy prices could encourage its adoption.
On the other hand, a new popular plastic made from oil could drive oil demand, temporarily offsetting renewable growth until this demand is outweighed by rising environmental concerns and the need to transition to sustainable energy sources.