"A berg the size of Scotland is poised to break off the Larsen ice shelf in West Antartica at any time. West Antartica is quite literally cracking up. The culprit is anthropogenic climate change, a steady rise in global temperatures produced by accumulating industrial emissions. Climate change is particularly virulent near the poles, where a vicious feedback phenomenon called polar amplification kicks in, causing sustained temperatures well above the delta produced by global warming in more temperate regions."