[5][9] In his writing, he argued that the Swedish landscape was suffering from environmental degradation due to the effects of industrial activity in other countries, especially Germany and the United Kingdom.

[3] Odén's discoveries, which had major international impact, were the starting point for negotiations on measures to reduce sulfur emissions in Europe.

[15][19] For over a year, the Norrtälje police department carried out a secret investigation of Odén's disappearance[18]—the authorities told his relatives and friends to keep silent about the matter.

The officer added that, "It was not unusual for dead bodies to go missing, and they didn't exactly know the place where he disappeared, it was a large area of the sea.

"[18] The police closed the case, giving the following summary: "Finally, it can be said that through the investigation that has taken place, it is not possible to determine exactly how Odén left the motorboat or plastic boat.