Tritium is already present in the ocean naturally and we are not talking about Nuclear Waste, as the title suggests, but clean water. We also cannot compare the tritium with mercury, because tritium, even if released in the ocean, decays away. Mecury, on the other hand, stays forever. The concerns that the water will affect marine life might be well intended but will cause more harm than good. In the worst possible case, this water will do less harm than what the other industries are releasing routinely, including water treatment plants. If you want to put your energy into preventing dirt from getting into the ocean, look literally anywhere else. People are dying every day due to fossil fuel caused pollution, because we are irrationaly overestimating the dangers of nuclear power which are and have always been the safest and cleanest way to produce electricity. These deaths are SOLELY a consequence of fear-based decision making. I cannot envision a bright future if we don’t start evaluating the consequences of different scenarios with a scientific approach and stop taking decisions based on feelings.

Edit: spelling of tritium