The topic of mercury in fish (as well as dolphins and whales) has been discussed here before, so it's of some interest to read the article above about research indicating that coal burning has increased mercury levels in the oceans:
Data analysis of the water samples indicated that total mercury levels in the North Pacific Ocean water have risen about 30 percent over the last 20 years.
The authors attribute the rise to increases in global mercury atmospheric emission rates, particularly from Asia. “We believe the majority of Asian mercury emission comes from coal burning (for electricity generation),” stated William Landing, a marine scientist with Florida State University, one of the lead investigators for this study.
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