Falling Ice Cracks New York City's Cool Facade

Even as One World Trade Center recently shed shards of ice and sent commuters dodging for cover, several experts said New York's newer buildings were better prepared to handle bad weather than many older structures of brick and stone.

"The new buildings are even better designed to safeguard against snow and ice," said Dennis Poon, a New York engineer and vice chairman of Thornton Tamasetti who has worked on skyscrapers around the globe.

He said glass-skinned buildings were less likely to collect snow and moisture that can freeze into ice than older buildings with many architectural details and window sills.

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