Warming menaces Alaska villages

Impacts on Alaska, via the Baltimore Sun: ...For millenniums, ice shelves and permafrost along the coast acted as shields against storms and tidal forces, but warming temperatures have melted much of those natural barriers. More than 180 Alaskan villages are in danger, government reports say. Those regarded as most imperiled include Newtok, Shishmaref and Kivalina. All three have made plans to relocate....