Melting of Greenland’s ice sheet has ‘gone into overdrive’

Melting of Greenland’s ice sheet has ‘gone into overdrive’
Climate change has forced the melting of Greenland’s mile-thick ice sheet into “overdrive,” threatening to boost global sea levels to dangerous levels. The enormous sheet, which covers an area two and a half times that of the United Kingdom, is dumping more melted ice into the oceans than at any point during the past 400...