Process:  - Rain falls on wood - The rain seeps into the wood surface - It permeates the wood - When rain evaporates it leaves the wood - It takes the finish of the wood with it - The wood begins to lose it's luster - It begins to look bad - It has pieces of paint missing from the rain - It gets worse when it rains - It eventually will have no paint left.  Perturbation hypothesis: suppose global warming increases happens, how will it affect LESS or SLOWER weathering occurring.  Does the supposed perturbation have an effect (direct or indirect) on the process?

yes