Agriculture Minister Norbert Totschnig (left) and entomologist Thomas Zuna-Kratky pose in an undated photo. The team of scientists headed by Dr Thomas Zuna-Kratky from Vienna University's Department of Evolutionary Biology found that 1,580 square kilometres of soil - which is four times the size of the federal capital - had been sealed within the last 30 years. (BML/Hemerka, NewsX/Bee)