Where is the value in meta-analysis?
Before I trained as a teacher, I worked as a researcher, investigating the effect of phytoplankton processes in the ocean. It appeared that in certain regions, plant-life was acting as a source of carbon dioxide to the atmosphere, which would have serious implications because it's a greenhouse gas. So I sailed the Atlantic, taking samples of seawater en-route, capturing a snapshot of the gas-balance at each point.