Whale-watching is a growing business around Japan, with popular spots from the southern Okinawa islands up to Rausu, a fishing village on the island of Hokkaido, so far north that it's closer to Russia than to Tokyo.
The number of whale watchers around Japan has more than doubled between 1998 and 2015, the latest year for which national data is available. One company in Okinawa had 18,000 customers between January and March this year.
No flag can claim the high seas, but many nations exploit them. As a result, life in the two-thirds of the oceans beyond any country's territorial waters faces many threats that are largely unregulated, including overfishing and the emerging deep-sea mining industry.
Now, nations are negotiating the first-ever high-seas conservation treaty, which the United Nations expects to finalize next year.
A record number of dolphins have washed up on France’s Atlantic coast in the last three months, many with devastating injures.
Environmental campaigners say 1,100 mutilated dolphins have been found since January, but the real figure could be 10 times higher as many bodies sink without trace. Activists warn the marine slaughter could threaten the extinction of the European dolphin population in the region.
The world's fisheries are in crisis. The United Nations food and Agriculture Organisation estimates 90 per cent of them are either overfished or at the limit of sustainability, and China is the major player.
While Greenland is a big island filled with lots of ice, it is highly unusual for that much ice to be lost in the middle of June. The average "melt season" for Greenland runs from June to August, with the bulk of the melting occurring in July.
A new study has found that out of the 20 million tons of fish caught by commercial industries a year for purposes other than eating, about 90 percent are, in fact, food grade. While this might not seem incredibly shocking at face-value, when you learn that these perfectly edible fish are being turned into fishmeal and fish oil, which is primarily used to feed farmed fish or factory farmed animals, such as pigs, and chickens, you’re likely to start scratching your head.