Unusually heavy rains in Lapland have caused water levels to rise near flood levels, and further rises will depend on temperatures over the next few days, with climate change being a contributing factor.

Tuomas Siilasjoki and Minna Näkkäläjärvi say they were taken by surprise when a mobile drill rig one day appeared in the horizon. Nobody had asked them about exploring for minerals inside their siida, a reindeer foraging area, in northern Finland.

Some try to be creative to avoid reindeer driveways. But this is not something the Norwegian Public Roads Administration wants.

Warm temperatures bring novel rain event in Northern Sweden.

Hiila Inga is concerned about the health of his reindeer. His community herds 8000 head each year, between traditional grazing lands in the mountain and the forests further east.

There are no records to indicate the last time there was such a radical temperature change in a 24-hour period.

Up north highs were up to 2 degrees warmer than average, while central and southern regions of Finland were up to 3 degrees warmer.

In just seven years, as much as one-third of the mountain-birch forest in the North Calotte region was severely defoliated by two moth species. Researchers now have a better understanding of what happened.

Herders are struggling to find thousands of reindeer that have run away in search of food. "We are driving for hours and hours to locate our reindeers and to herd them back, but it has been very difficult in these wintry conditions. So, we are also using helicopters and this is very unusual - and very expensive too."