The discharge time will last at least 30 years, which will affect the entire Pacific Ocean and the world. This destroys marine ecosystems!!
THat's factually not true. Discharge occurs in other places and already occured in Fukushima. Again, that's propaganda against nuclear power while other sources of energy are much more polluting in total indifference. Millions of people die just in China from air pollution, and yet, people are yelling because of a discharge in Japan that will quickly get to average level...
As for the ecosystem, most of life gets better with radiation than with people presence.
So you mean this action will not affect anyone? They are trying to put DRUGS into the sea!!!
Tritium is not a drug but a radionuclid. It can affect the DNA, yet, it's also present everywhere in small quantities. Here, the project is to dillute the pollutant (tritium, and a little bit of C14 - the same used to date archological scenes) enought o reach low level enough before discharing. The discharge then dillute in the ocean and is supposed to reach ocean level after a few km at best, yet the level before is already set to be low enoughnot to be a danger for people.
THe proejct, once again, is validated by an independent body called the International Atomic Energy Aency or something like that (AEIA), which means that it's not Japan just making up numbers.
The only questiont hat really could be source of worry is wether the dillution is doing well in the ocean where there might be different layers of water,e specially when it gets very hot, but more than all if there is an accumulation of pollutants (here radioactive elements) in t he foodchain = if predator fish get higher level of tritium than expected.
This is basically the only real criticism that could be given from what I've seen; and it induce that people will fish around there... So as loong as Chinese fishermen stay where they are supposed to fish (I know it's very hard for them since they fish illegaally everywhere), it should be ok.
Last but not least, nuclear pollution is a local pollution, unlike greenhouse gas.