NEW WORRIES ABOUT THE RISING TIDE

Quickly rising temperatures in Antarctica back up the global-warming theory, prompting scientists to raise new concerns about the possibility of floods. British researchers who monitor conditions at the South Pole have tracked an increase of half a centigrade degree every decade. This marks the fastest mercury rise on record and a pattern that many view as a warning sign pointing to global warming. Some of the cities at risk of being deluged by melting polar ice: Sydney, Bangkok and the American ports of New Orleans and Miami.