Places to see before they vanish forever

Yahoo! Travel lists six places to experience before they disappear

Some of the world’s most beautiful destinations are under threat of disappearing. This generation could be the last to see them in their current form. Thanks in most part to the $5 billion tourist industry built around it, Australia’s Great Barrier Reef could be “extinct” by 2050 due to climate change and pollution. Meanwhile, the Dead Sea is disappearing too, by about one metre every year, and unless water is pumped into it the sea could vanish within 50 years. And Venice could become uninhabitable by 2100, as the land sinks while the water levels rise.
The 2000-year-old Great Wall of China is gradually being destroyed by sandstorms and farmers using its stones to build and repair their farms. An area the size of Greece vanished from the Amazon Rainforest in 2000-05 due to deforestation; experts say that the last remaining rainforests could be gone in less than 40 years. And the polar bears of Canada’s Hudson Bay are being severely affected by the loss of sea ice through global warming, limiting their ability to hunt. They could die out in 25 to 30 years.
Yahoo! Travel
[pictured: Ponte di Rialto, Venice]