Meningococcal disease serious, but still rare Meningococcal disease is a disease caused by a bacterium, the meningococcus. There are several types of this bacterium. In most cases, it does not make you ill.
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.
Half of the Dutch participate in sport weekly In 2014, 53% of people between the ages of 12 and 80 in the Netherlands participate in some type of sport weekly.