Finnish artists Pekka Niittyvirta and Timo Aho have shone three lines of light across a Scottish coastal town in this installation that aims to show the impact of climate change.
Niittyvirta and Aho installed a series of sensors on North Uist in the Outer Hebrides of the Scottish archipelago that interact with the tide. The sensors activate three synchronised beams of light, which represent a scientific estimate of the level that the sea could rise to if the earth continues to warm.

Called Lines, the installation ? which cuts across the walls of a number of surrounding buildings ? aims to serve as a visual warning of the long-term effects of climate change on the environment.
"The installation explores the catastrophic impact of our relationship with nature and its long-term effects," said the duo. "The work provokes a dialogue on how the rising sea-levels will affect coastal areas, its inhabitants and land usage in the future."
The lights were mounted onto aluminium channels that attached either to the walls of buildings or to steel stems protruding from the ground.
These were connected to sensors that activated the lights when there was a change in the tide and therefore the water-level.
"Art has the potential to convey scientific data, complex ideas and concepts, in a powerful way that words or graphs fall short of. Hopefully, through this work, people can better visualise and relate to [the] reality," said the artists.

The pair w...