To understand this, we need to understand how humans impact marine ecosystems. In the previous MOOC, you have learned that WE need the ocean but our activities IMPACT the ocean
#CumulativeEffects #health

Human activities translate to pressures on marine systems. Some pressures can be strong (e.g., heavy commercial fishing), others weak (e.g., from recreational fishing). However, their impacts can accumulate. Think of all the activities we do and how they can impact oceans.