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The declaration covers a wide range of topics related to the environment, blaming 'past neglect in managing the natural environment and resources'. [1] It lists what the Heads of Governments perceived to be the main environmental problems: the greenhouse effect , damage to the ozone layer , acid rain , marine pollution , land degradation , and ...
Cities are demarcated using hundreds of symbols. It measures 1.12 ft (0.34 m) high and 22.15 ft (6.75 m) long. The tools and principles of geography used by the Romans would be closely followed with little practical improvement for the next 700 years. [17]