Easily refuted:<br><div class="gmail_quote"><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><table border="0" cellpadding="0" cellspacing="0"><tbody><tr><td style="font:inherit" valign="top">
<i><p class="MsoNormal" style="margin:0in 0in 0pt"><font size="3">how can you measure the average temperature of the whole earth for a whole year?</font></p></i></td></tr></tbody></table></blockquote><div> <br>It's only the Earth's surface, not the core. As to how: distribute a lot of temperature<br>
sensors over the Earth (including but not limited to IR cameras on a bunch of satellites,<br>whose orbits allow them to collectively see the entire surface of the Earth), and monitor<br>them for a year. Really, a trivial exercise in experiment design.<br>
<br></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><table border="0" cellpadding="0" cellspacing="0"><tbody><tr><td style="font: inherit;" valign="top">
<i><p class="MsoNormal" style="margin: 0in 0in 0pt;"><font size="3">the temperature has changed from ~288.0 to ~288.8 degree Kelvin in about 150 years</font><br></p></i></td></tr></tbody></table></blockquote><div><br> He says that is "the claim" - it's not. The claim is over a much shorter timespan than<br>
that.<br></div></div>