The document discusses the history of Shanghai and how it may be affected by global warming in the future. It describes how Shanghai used to be underwater thousands of years ago and discusses its development over time. It then predicts that within 50-100 years, if global warming continues, Shanghai may be underwater again as sea levels rise, similar to what is already happening in Venice with frequent flooding. The document encourages concern for actions to address global warming.

1. 上海 的 昨日、 今日 與 明日 當 global warming 發生，繁華退盡時 李常生 Eddie Lee 6/21/2010 Taipei 台北 [email_address]

2. 遠古時候的上海

3. 幾千年以前，上海還在海上

4. 上海老地圖

5. 明朝時的上海

7. 租界時期的上海

11. 清末民初 及 八十年代以前 的上海

41. 現代的上海

74. 2010 上海世博會

91. 全球暖化 發生以後的 上海 ( 大約 50 至 100 年後 )

92. 全球暖化後渤海灣的天津 將被淹沒在海底

93. 全球暖化後上海、太湖 乃至南京將被淹沒在海底

94. FLOODING OF VENICE you can image the future of Shanghai 威尼斯已經開始淹水了，你可以想像上海未來淹水的樣子

95. Concerned about the globe warming

96. Tourists take photos of each other in the flooded Piazza San Marco in Venice December 1, 2008. Large parts of Venice were flooded on Monday as heavy rains and strong winds lashed the lagoon city, with sea levels at their highest level in 22 years. Ferry and water taxi services in the city were suspended and Venice's mayor urged people to stay indoors. Tourists and residents struggled to get across the city over raised walkways. The Centro Maree, which forecasts water levels, said sea levels in the Adriatic rose 1.56 meters (5.1 ft) - a level not seen since 1986. (REUTERS/Manuel

97. Duncan Zuur of the Netherlands rides a wakeboard across flooded Piazza San Marco in Venice , December 2, 2008.

98. A woman waits for a boat during floods on December 1, 2008 in Venice . Authorities in the Italian city of Venice issued a flood alert, warning that the sea was due to rise 1.60 meters above its normal level, the highest for 30 years. Nearly all the streets of the city, including the central tourist district were already under water by mid-morning with the famous Piazza San Marco by 80 centimeters (two feet, seven inches). (ANDREA PATTARO/AFP PHOTO/AFP/Getty Images)

99. Tourists walk across on boards used to create walkways over the high water in the flooded Piazza San Marco on December 2, 2008 in Venice , Italy . (Franco Debernardi/Getty Images)

100. Shopkeepers block the entrance of their shop with a wood panel as water rises in the streets of Venice on December 1, 2008. (ANDREA PATTARO/AFP PHOTO/AFP/Getty Images

101. A gondola passes through flood waters near Rialto Bridge on December 2, 2008 in Venice , Italy . (Franco Debernardi/Getty Images)

102. A man wades through the Piazza San Marco during floods on December 1, 2008 in Venice . (ANDREA PATTARO/AFP PHOTO/AFP/Getty Images)

103. A view of the flooded Piazza San Marco on December 1, 2008 in Venice . (ANDREA PATTARO/AFP PHOTO/AFP/Getty Images)

104. 12A man walks on a flooded quay of Venice on December 1, 2008. (ANDREA PATTARO/AFP PHOTO/AFP/Getty Images)

105. People walk on a flooded quay of the Grand canal of Venice on December 1, 2008. (ANDREA PATTARO/AFP PHOTO/AFP/Getty Images)

106. 10A view of a flooded dock area of Venice on December 1, 2008. (ANDREA PATTARO/AFP PHOTO/AFP/Getty Images)

107. 11A man stands on a boat at Piazza San Marco during floods on December 1, 2008 in Venice. (SEBASTIANO CASELLATI/AFP/Getty Images)

108. Tourists wade through flood waters in a shopping district of Venice, Italy on December 1, 2008. (REUTERS/Michele Crosera)

109. 14Women sit on a table while water rises in their shoe shop during floods on December 1, 2008 in Venice. (ANDREA PATTARO/AFP PHOTO/AFP/Getty Images

110. 15People walk on a flooded oceanside walkway of Venice on December 1, 2008. (ANDREA PATTARO/AFP PHOTO/AFP/Getty Images

111. A view of a flooded Piazza San Marco, with St. Mark's Basilica in the background, in Venice, northern Italy, Monday, Dec. 1, 2008. (AP Photo/Luigi Costantini

112. 17Men share a drink on a flooded plaza near the Rialto bridge on December 1, 2008 in Venice. (ANDREA PATTARO/AFP PHOTO/AFP/Getty Images

113. A postman carries envelopes through flood waters in Venice December 1, 2008. (REUTERS/Manuel Silvestri)

114. People wade past gondolas in Venice on December 1, 2008. (ANDREA PATTARO/AFP PHOTO/AFP/Getty Images)

115. 20A view of Piazza San Marco and the Doge's Palace (right) taken during floods on December 1, 2008 in Venice, Italy. (ANDREA PATTARO/AFP PHOTO/AFP/Getty Images)

116. People wade through high water near a canal bridge in Venice, Italy, Monday, Dec. 1, 2008. (AP Photo/Luigi Costantini)

117. People walk on Piazza San Marco for the second day under water on December 2, 2008 in Venice. (ANDREA PATTARO/AFP PHOTO)

118. A woman walks through floodwaters on Piazza San Marco during floods on December 1, 2008 in Venezia. (ANDREA PATTARO/AFP PHOTO/AFP/Getty Images)

119. Duncan Zuur of the Netherlands rides a wakeboard along a canal next to flooded St. Mark's square in Venice,Italy on December 2, 2008. (REUTERS/Handout/Euro-Newsroom.com/Joerg Mitter)

120. 25Customers stand in flood waters in a pastry shop in Venice December 1, 2008. Tourists and residents struggled to get across the city over raised walkways. The Centro Maree, which forecasts water levels, said sea levels in the Adriatic rose 1.56 meters (5.1 ft). (REUTERS/Michele Crosera) #

135. 請與我一齊共同關心 全球暖化 的行動！