Task: Question Answering
Input (English): Background Paragraph: Carbon dioxide is the most significant long-lived greenhouse gas in Earth's atmosphere. Since the Industrial Revolution anthropogenic emissions – primarily from use of fossil fuels and deforestation – have rapidly increased its concentration in the atmosphere, leading to global warming.  Carbon dioxide also causes ocean acidification because it dissolves in water to form carbonic acid. 
Story: Indiana has decided it wants to do its best to stop contributing to global warming. The first place the government decides to look is at the number of factories that use fossil fuels in production. They plan to shut down many of them in the coming years. 
Question: Given one of the factories in Indiana is right next to a body of water, will the levels of carbonic acid in the water be higher or lower than a body of water with no factory near it?
Output (English): lower.