Incidentally, I would like to go on record as supporting Greenpeace in their activist campaign to stop Japan from whaling.
There is an international convention forbidding the hunting of whales. As far as I know, this has not caused any sort of upheaval in undersea ecology. I have not seen anyone make the argument that the whale herd really needs culling and it's some left-wing delusion preventing that from occurring. It seems that there is a legitimate international consensus that it's in the interest of the healthy conservation of the planet to avoid killing whales to the extent possible.
Japan has flouted this for years, ostensibly for some scientific purpose. But observers of the Japanese social scene consistently report that whale meat turns up on the menu at trendy dinners.
Godspeed for Greenpeace. They're doing what we should be doing, enforcing the international standards of responsible use of nature.