A Welsh company plans to test a wind-powered machine in Nunavut next winter that, if successful, will thicken sea ice as part of an effort to keep it around longer. "What we can do then is, hopefully, mitigate some climate change through the use of the machines and build up the ice and, therefore, actually protect the Arctic habitat and restore the ecosystem up here," said Cían Sherwin, CEO of Real Ice, based in Gaerwen, Wales.