A few years ago, the researchers Motesharrei, Rivas and Kalnay made a theoretical model of how the environmental problems are distributed among the world's population.
They could show that the poor are affected first, while the richest can continue for a long time as if nothing has happened. Of course, the rich are also affected.
The people who create the risks through industries, extraction of resources and waste production rarely have the consequences themselves.
They are placed on other people, often in other countries, in which resources are depleted, dehydrated or poisoned. And this is pretty much exactly what happens to our seas.
But even in Swedish waters, changes are taking place. Species of algae, seaweed and small animals disappear, while others spread out.
Today, 20 fish species in the Skagerrak are red listed. Cod, flatfish and cartilaginous fish are at historically low levels. The direct causes of the problems with the seas are more than just depletion, even the eutrophication on the coasts causes the ecosystems to be disrupted, for example the important eel grass beds are reduced.
Another cause of the change is invasive species. There are marine nature reserves in Sweden that protect eel grass beds and other valuable areas from mechanical damage and some fishing, but not from eutrophication.
ICES, the International Council for the Exploration of the Sea, would like to see a cod fishing stop in the Kattegat 2020 and that cod fishing in the North Sea-Skagerack will decrease by 63 percent.
Nearly 90 percent of the world's fish stocks are maximally fished or overfished.
But the strange thing is that while the seas become depleted or overgrazed globally, we will for a long time be able to buy fish that have been fished using more expensive methods and elsewhere.
Along the coasts of Africa, industrial fishing from above all China, Korea and the EU beats traditional fishing. It is difficult already, and it will probably be even more difficult for anyone who enjoys fishing, especially in those countries where all attempts to regulate their own fishing become meaningless due to the predatory fishing of foreign boats.
In particular, the EU, which has concluded agreements with several countries in Africa on fishing rights, should take greater responsibility for the fishing activities carried out on international waters and in the territorial waters of other countries.
For us individual consumers, it is important to make sure that the fish we eat is MSC-labeled or KRAV-labeled.
But fishing must be regulated by a higher body that has insight into the global problem. The UN has begun work on regulating, inter alia, fishing on international waters.
International agreements can sometimes be problematic, especially because the possibility of sentencing is limited. For example, what should we threaten the state of China with if it violates its powers?
Nevertheless, there is some hope for this kind of agreement, not least because compliance is prestigious. And until the agreement comes into force, we can take the opportunity to press our own decision-makers in Sweden and in the EU.
We have a difficult transition ahead of us, and it will only happen if we think in terms of global regulation of fishing.