Minor constituents in the stratosphere and mesosphere

This paper is a brief survey of a portion of the research on trace constituents in the stratosphere and mesosphere between 1971 and 1974. A primary motivation for much of the stratospheric research came from the realization that man's activities may influence global climate and the atmospheric ozone content, our shield against certain UV wavelengths. A great deal of progress has been reported in understanding both the present background stratosphere and the responses to be expected from additions of nitrogen oxides, water, and chlorine oxides, especially with respect to ozone. Trace constituents in the mesosphere have been modeled and measured to increase our understanding of the physics and chemistry of the mesosphere but also to relate mesospheric composition and transport to ionospheric processes at higher altitudes, to D region ion chemistry, and to upper stratospheric composition. Copyright © 1975 by the American Geophysical Union

Minors travelling alone: a risk group for human trafficking?

Minors travelling without their parent(s) or guardian are an increasing phenomenon. Although their travel objectives might differ importantly, varying from holiday purposes to migration objectives, an important subgroup of them might be at risk to fall into exploitative circumstances, such as human trafficking. Studying the group of minors travelling alone arriving at Brussels Airport (Belgium), this research investigates the population's characteristics, the procedures used, and the risks some of these minors run of falling into exploitative situations. Firstly, registration revealed that tens of thousands minors travelling alone arrive at Brussels Airport each year, with an important part of them coming from African countries. Secondly, participant observations showed that detection of possible cases of human trafficking is a very complex issue, resulting in the alarming hypothesis that many cases of trafficking of minors travelling alone might not be detected during their journey or at their arrival at the airport