Global Warming

<br /> <div class="figure wide" style="-webkit-text-stroke-width: 0px; background-attachment: scroll; background-color: whitesmoke; background-position: 0px 0px; border: 0px; color: #383838; font-family: 'Lucida Grande', 'Lucida Sans', Arial, Helvetica, sans-serif; font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 18px; margin: 0px 0px 18px -27px; orphans: auto; outline: 0px; padding: 0px; position: relative; text-align: start; text-indent: 0px; text-transform: none; vertical-align: baseline; white-space: normal; widows: 1; width: 720px; word-spacing: 0px;"> </div> <br /> <div class="separator" style="clear: both; text-align: center;"> </div> <div class="section" style="-webkit-text-stroke-width: 0px; background-attachment: scroll; background-color: whitesmoke; background-position: 0px 0px; border: 0px; color: #383838; font-family: 'Lucida Grande', 'Lucida Sans', Arial, Helvetica, sans-serif; font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 18px; margin: 0px; orphans: auto; outline: 0px; padding: 0px; text-align: start; text-indent: 0px; text-transform: none; vertical-align: baseline; white-space: normal; widows: 1; width: 468px; word-spacing: 0px;"> <h2 style="background-attachment: scroll; background-color: transparent; background-position: 0px 0px; border: 0px; color: #504f4f; font-size: 18px; font-weight: bold; line-height: 24px; margin: 9px 0px 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> Global Warming</h2> <div class="separator" style="clear: both; text-align: center;"> </div> <div style="background-attachment: scroll; background-color: transparent; background-position: 0px 0px; border: 0px; font-size: 13px; line-height: 20px; margin: 0px; outline: 0px; padding: 0px 0px 18px; vertical-align: baseline; width: 468px;"> Throughout its long history, Earth has warmed and cooled time and again. Climate has changed when the planet received more or less sunlight due to subtle shifts in its orbit, as the atmosphere or surface changed, or when the Sun’s energy varied. But in the past century, another force has started to influence Earth’s climate: humanity<span style="background-color: transparent;">How does this warming compare to previous changes in Earth’s climate? How can we be certain that human-released greenhouse gases are causing the warming? How much more will the Earth warm? How will Earth respond? Answering these questions is perhaps the most significant scientific challenge of our time</span><span style="background-color: transparent;">Global warming is the unusually rapid increase in Earth’s average surface temperature over the past century primarily due to the greenhouse gases released as people burn fossil fuels. The global average surface temperature rose 0.6 to 0.9 degrees Celsius (1.1 to 1.6° F) between 1906 and 2005, and the</span><em style="background-attachment: scroll; background-color: transparent; background-position: 0px 0px; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">rate</em><span style="background-color: transparent;"> </span><span style="background-color: transparent;">of temperature increase has nearly doubled in the last 50 years. Temperatures are certain to go up further.<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody> <tr><td style="text-align: center;"><a href="https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcSIeGG9J31fVLTY4-2b9nTbRsJTZlxkg1lyrk-JjvWe3WpIENI1" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="Global Warming" border="0" height="224" src="https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcSIeGG9J31fVLTY4-2b9nTbRsJTZlxkg1lyrk-JjvWe3WpIENI1" title="Global Warming" width="400" /></a></td></tr> <tr><td class="tr-caption" style="text-align: center;"><br /></td></tr> </tbody></table> </span></div> </div>

Global Warming

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Global Warming Throughout its long history, Earth has warmed and cooled time and again. Climate has changed when the planet received more or less sunlight due to subtle shifts in its orbit, as the atmosphere or surface changed, or when the Sun’s ene… Read more »

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