Bryan and Cherry Alexander / Chukchi family watching a movie on a notebook computer by candlelight inside a Yaranga (traditional tent) at a reindeer herder's camp. Iultinsky District, Chukotka, Siberia, Russia, August 2013.

Bryan and Cherry Alexander / A Chukchi family watching a movie on a notebook computer inside a Yaranga (traditional tent) at a reindeer herder's camp. Iultinsky District, Chukotka, Siberia, Russia, August 2013.

Bryan and Cherry Alexander / Modern housing units in the Nunavut capital, Iqaluit, on stilts because of the permafrost. Baffin Island, Canada, 2002.

Bryan and Cherry Alexander / Modern housing units in the Nunavut capital, Iqaluit, on stilts because of the permafrost. Baffin Island, Canada, 2002.

Bryan and Cherry Alexander / Science Research Laboratory in Igloolik. Nunavut, Canada, 1987.

Bryan and Cherry Alexander / Brightly coloured modern houses in Ilulissat, West Greenland, 2008.

Bryan and Cherry Alexander / Brightly coloured modern houses close to the sea in Ilulissat, West Greenland, 2008.

Bryan and Cherry Alexander / Nenets spectator using his mobile phone to photograph a reindeer race at a herders festival in the Yamal. Western Siberia, Russia, February 2009. Editorial use only.

Bryan and Cherry Alexander / Chubynin Street at night in the centre of Salekhard with its modern buildings. Yamal, Western Siberia, Russia, August 2008.

Bryan and Cherry Alexander / Modern clock tower and apartment block in the centre of Salekhard, the capital of the Yamal. Western Siberia, Russia, August 2008.

Bryan and Cherry Alexander / Khanty woman using a mobile phone in Nadym. Yamal, Northwest Siberia, Russia, February 2007. Editorial use only.

Bryan and Cherry Alexander / Nenets woman using a mobile phone. Yamal, Northwest Siberia, Russia, February 2007. Editorial use only.