Associated Press: New Zealand’s biggest glacier is melting at its fastest pace in recent history, a scientist said Thursday. The Tasman Glacier on South Island was 29 kilometers (18 miles) long in 1990, with virtually no lake at its front edge, Massey University glacier expert Martin Brook said. New measurements last week showed the glacier was 22 kilometers (14 miles) long, he said. Meanwhile, a lake that has formed next to the glacier is now seven kilometers (4.4 miles) long, two …