Young people who use screens before sleeping have more sleep problems Young people (13-18 years) who use light-emitting screens daily in the hour before going to sleep have more sleep problems.
Climate change, ozone depletion and air quality need to be addressed coherently Ozone layer depletion, air pollution and climate change need to be addressed in connection with each other.
Icy air measurements Bernice Notenboom’s Arctic March expedition team has reached the summit of Greenland. She has conquered the 3500-metre high summit on Greenland with functioning air measuring equipment.
Climate reporter Bernice Notenboom arrives in Greenland for continuation of climate expedition Climate reporter and expedition leader Bernice Notenboom and her team left for Greenland on 4 May 2015 for the second part of the Arctic March.