Martin: Is there any danger with this development?
– We have ticks. Not so long ago, warnings were issued for ticks in the Baltic Sea landscape, but today they are found throughout southern Sweden – even up in Norrland. And we have malaria mosquitoes in Sweden, or frozen mosquitoes as they are called, says Johan Nilsson, environmental analyst at Artdatabanken at the Swedish University of Agricultural Sciences.
In the clip above: Here are the species that spread north