Global Warming Could Delay Next Ice Age The next ice age could be delayed by tens of thousands of years due to excessive amounts of heat-trapping carbon dioxide in the atmosphere, which disrupts Earths natural cycle of warming and cooling, according...
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Lesson 3 1.Listen to the audio tape.Fill in the blanks. [00:08.10]Write the words you hear. [00:11.86]A warm windHave you ever visited Calgary Alberta in the winter? [00:19.72]It is a cold place. [00:23.48]Snow and ice cover the streets.Lakes and riv...
