… NWI falls. The main cause was the increasing income inequality. Between 2005 and 2013 there were hardly any fluctuations of the NWI. From 2014 on there was a … NWI falls. The main cause was the increasing income inequality. Between 2005 and 2013 there were hardly any fluctuations of the NWI. From 2014 on there was a …

… Roughly 300 million tonnes of plastic are produced every year worldwide (Data: 2013). It must be assumed that up to 30 million tonnes of plastic are ending up in … Roughly 300 million tonnes of plastic are produced every year worldwide (Data: 2013). It must be assumed that up to 30 million tonnes of plastic are ending up in …