Globalicwarming
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There is clear proofs that confirms the speculations about the global warming.
I will show some here in this article.
This graph above show the temperature anomaly the last 2000 years.
Description
- (dark blue 1000-1991): P.D. Jones, K.R. Briffa, T.P. Barnett, and S.F.B. Tett (1998). High-resolution Palaeoclimatic Records for the last Millennium: Interpretation, Integration and Comparison with General Circulation Model Control-run Temperatures, The Holocene, 8: 455-471
- (blue 1000-1980): M.E. Mann, R.S. Bradley, and M.K. Hughes (1999). Northern Hemisphere Temperatures During the Past Millennium: Inferences, Uncertainties, and Limitations, Geophysical Research Letters, 26(6): 759-762
- (light blue 1000-1965): Crowley and Lowery (2000). Northern Hemisphere Temperature Reconstruction, Ambio, 29: 51-54 Modified as published in Crowley (2000). Causes of Climate Change Over the Past 1000 Years, Science, 289: 270-277
- (lightest blue 1402-1960): K.R. Briffa, T.J. Osborn, F.H. Schweingruber, I.C. Harris, P.D. Jones, S.G. Shiyatov, S.G. and E.A. Vaganov (2001). Low-frequency temperature variations from a northern tree-ring density network, J. Geophys. Res., 106: 2929-2941
- (light green 831-1992): J. Esper, E.R. Cook, and F.H. Schweingruber (2002). Low-Frequency Signals in Long Tree-Ring Chronologies for Reconstructing Past Temperature Variability, Science, 295(5563): 2250-2253
- (yellow 200-1980): M.E. Mann and P.D. Jones (2003). Global Surface Temperatures over the Past Two Millennia, Geophysical Research Letters, 30(15): 1820 DOI:10.1029/2003GL017814.
- (orange 200-1995): P.D. Jones and M.E. Mann (2004). Climate Over Past Millennia, Reviews of Geophysics, 42: RG2002DOI:10.1029/2003RG000143
- (red-orange 1500-1980): S. Huang (2004). Merging Information from Different Resources for New Insights into Climate Change in the Past and Future, Geophys. Res Lett., 31: L13205DOI:10.1029/2004GL019781
- (red 1-1979): A. Moberg, D.M. Sonechkin, K. Holmgren, N.M. Datsenko and W. Karlen (2005). Highly variable Northern Hemisphere temperatures reconstructed from low- and high-resolution proxy data, Nature, 443: 613-617 DOI:10.1038/nature03265
- (dark red 1600-1990): J.H. Oerlemans (2005). Extracting a Climate Signal from 169 Glacier Records, Science, 308: 675-677DOI:10.1126/science.1107046
This shows the temperature change from 150 years back and about 100 years in the future ahead. The future values have been calculated.
Trends of global temperature from observations, the United Kingdom's Hadley Centre Global Climate Model, and the Canadian Climate Center's Global Climate Model. Trends have been smoothed to remove year-to-year high frequency variations.
This figure shows the difference in instrumentally determined surface temperatures between the period January 1995 through December 2004 and "normal" temperatures at the same locations, defined to be the average over the interval January 1940 to December 1980. The average increase on this graph is 0.42 Celsius, and the widespread temperature increases are considered to be an aspect of global warming.
This image shows the instrumental record of global average temperatures as compiled by the Climatic Research Unit of the University of East Anglia and the Hadley Centre of the UK Meteorological Office. Data set TaveGL2v was used. The most recent documentation for this data set is Jones, P.D. and Moberg, A. (2003) "Hemispheric and large-scale surface air temperature variations: An extensive revision and an update to 2001". Journal of Climate, 16, 206-223.
After seeing these images, I think that we can make the conclusion: Global up heating exists