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<oembed><version>1.0</version><provider_name>Climate 411</provider_name><provider_url>https://blogs.edf.org/climate411</provider_url><title>Part 5 of 5:&#xA0; The Only Explanation Left - Climate 411</title><type>rich</type><width>600</width><height>338</height><html>&lt;blockquote class="wp-embedded-content" data-secret="shL7NdJ3rH"&gt;&lt;a href="https://blogs.edf.org/climate411/2007/07/12/human_cause-5/"&gt;Part 5 of 5:&#xA0; The Only Explanation Left&lt;/a&gt;&lt;/blockquote&gt;&lt;iframe sandbox="allow-scripts" security="restricted" src="https://blogs.edf.org/climate411/2007/07/12/human_cause-5/embed/#?secret=shL7NdJ3rH" width="600" height="338" title="&#x201C;Part 5 of 5:&#xA0; The Only Explanation Left&#x201D; &#x2014; Climate 411" data-secret="shL7NdJ3rH" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"&gt;&lt;/iframe&gt;&lt;script type="text/javascript"&gt;
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</html><description>This is the final installment of a five-part series by Bill Chameides on How We Know Humans Cause Global Warming. 1. A 175-year-old Puzzle 2. What Chemistry Tells Us 3. Causes of Past Climate Change 4. The Medieval Warming Period 5. The Only Explanation Left Compared to 100 years ago, the temperature of the atmosphere ...</description></oembed>
