Endangered Earth

Global Warming, The Reality .. Global Temperatue Chart 2500 BC to Present Thechart above does not really need any words, it is pretty self explanitory. Though we should do whatever we can to eliminate polution and take care of our environment, the chart shows that Global warming and cooling will go on with or without mankind's involvement

415,000 Year Temperature Graph ... This graph and the graphs below are drawn from the data gathered from the Vostok ice core samples and, unlike the t0" >

The temperature record of the past 1,000 years describes the reconstruction of temperature for the last 1000 years on the Northern Hemisphere. A reconstruction is needed because a reliable surface temperature record exists only since about 1850. Studying past climate is of interest for scientists in order to improve the understanding of current climate variability and, relatedly, providing a better basis for future climate projections. In particular, if the nature and magnitude of natural climate variability can be established, scientists will be better positioned to identify and quantify human generated climate variability (commonly referred to as 'anthropogenic global warming' (AGW). Although temperature reconstructions from proxy data help us understand the character of natural climate variability, attribution of recent climate change relies on a broad range of methodologies of which the proxy reconstructions are only a small part [1] [2].

According to all major temperature reconstructions published in peer-reviewed journals (see graph), the increase in temperature in the 20th century and the temperature in the late 20th century is the highest in the record. Attention has tended to focus on the early work of Michael E. Mann, Bradley and Hughes (1998), whose "hockey stick" graph was featured in the 2001 United Nations Intergovernmental Panel on Climate Change report. The methodology and data sets used in creating the Mann et al. (1998) version of the hockey stick graph are disputed, most notably by Stephen McIntyre and Ross McKitrick.

For general information about temperature records see the main article: Temperature record. For information on the description of the Medieval Warm Period and Little Ice Age in various reports see the main article: MWP and LIA in IPCC reports

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Y.-M. Wang, J. L. Lean, and N. R. Sheeley, Jr.
Code 7670, E. O. Hulburt Center for Space Research, 
Naval Research Laboratory, Washington, DC 20375-5352
Journal in PDF

This picture, taken by www.surfacestations.org volunteer Don Kostuch is the Detroit Lakes, MN USHCN climate station of record. The Stevenson Screen is sinking into the swamp and the MMTS sensor is kept at a comfortable temperature thanks to the nearby A/C units.

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