evidence: Climate Change: Arctic sea ice summer minimum [...] Sea ice that hasn't yet survived a summer melt season is first-year ice. This thin, new ice is vulnerable to melt and disintegration in stormy conditions. Ice that survives a summer melt season can grow thicker and less salty—two things that make it more resistant to melt. Multiyear ice is more likely to survive temperatures that would melt first-year ice, and to survive waves and winds that would break up first-year ice. Although sea ice moves more slowly than ocean water, ice still moves. Carried by ocean currents, Arctic sea ice regularly flows out toward the warmer waters in the Atlantic via the Fram Strait east of Greenland. [...] Arctic sea ice declines are related to the phenomenon known as Arctic amplification: more intense warming in the Arctic than over the rest of the globe. Arctic amplification fits with current scientific understanding of Earth's climate system, and with model projections of global warming caused by greenhouse gas emissions. Multiple factors contribute to Arctic amplification, and sea ice loss is one of them.