According to CBS News, data from a British team of explorers suggests "the Arctic will be ice-free in summer within 20 years, and that much of the decrease will happen within 10 years." The Catlin Arctic Survey was working with the World Wildlife Fund, and the WWF warns, "Such a loss of Arctic sea ice cover has recently been assessed to set in motion powerful climate feedbacks which will have an impact far beyond the Arctic itself...This could lead to flooding affecting one-quarter of the world's population, substantial increases in greenhouse gas emissions from massive carbon pools and extreme global weather changes."