Yes. It's the idea that if you have a lake, for example, a single decision to develop something or do something on that lake may itself not have an impact, but if you do the same thing 20 or 30 times where there are 30 or 40 different activities, that can create an impact, even though individually those single activities may not seem like such a big deal.
On November 28th, 2016. See this statement in context.