Source https scripps ucsd eduprogramskeelingcurve Finzi Teaches First

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Source: https: //scripps. ucsd. edu/programs/keelingcurve/ Finzi Teaches First BU Course Finzi Graduates High School

Source: https: //scripps. ucsd. edu/programs/keelingcurve/ Finzi Teaches First BU Course Finzi Graduates High School Finzi Born

Source: Petit et al. (1999). Nature 399: 429 -436

Source: Petit et al. (1999). Nature 399: 429 -436

CO 2 Concentration in Ice Cores and Atmospheric CO 2 Projection for Next 100

CO 2 Concentration in Ice Cores and Atmospheric CO 2 Projection for Next 100 Years Vostok Record Current (BP 1950) Source: C. D. Keeling and T. P. Whorf; Etheridge et. al. ; Barnola et. al. ; (PAGES / IGBP); IPCC Challenges of a Changing Earth — July 2001 CO 2 Concentration (ppmv) Mauna Loa Record

CO 2 Concentration in Ice Cores and Atmospheric CO 2 Projection for Next 100

CO 2 Concentration in Ice Cores and Atmospheric CO 2 Projection for Next 100 Years Medium to Low Projected (2100) Vostok Record Current (BP 1950) Source: C. D. Keeling and T. P. Whorf; Etheridge et. al. ; Barnola et. al. ; (PAGES / IGBP); IPCC Challenges of a Changing Earth — July 2001 CO 2 Concentration (ppmv) Mauna Loa Record IPCC Mid-Range Scenario

IPCC Range AR 4, 2007 I P

IPCC Range AR 4, 2007 I P

Source: https: //scripps. ucsd. edu/programs/keelingcurve/

Source: https: //scripps. ucsd. edu/programs/keelingcurve/

THE SMOKING GUN… carbon isotopic analysis links rising CO 2 to human fossil fuel

THE SMOKING GUN… carbon isotopic analysis links rising CO 2 to human fossil fuel burning Atmosphere contains both 12 C and 14 C CO 2 trees live for hundreds of years record the quantity of 12 C and 14 C in atm.

THE SMOKING GUN fossil fuels were produced hundreds of millions of years ago, they

THE SMOKING GUN fossil fuels were produced hundreds of millions of years ago, they contain no 14 C

http: //www. iup. uni-

http: //www. iup. uni-

Aerial Extent of summer Arctic Sea Ice, 1979 Aerial Extent of summer Arctic Sea

Aerial Extent of summer Arctic Sea Ice, 1979 Aerial Extent of summer Arctic Sea Ice, Sept. 2012

The graph shows that estimates of annual industrial CO 2 emissions in gigatons of

The graph shows that estimates of annual industrial CO 2 emissions in gigatons of carbon per year (Gt. C yr− 1) for 1990– 2003 (black circles) and for 2009 (open circle) fall within the range of all 40 SRES scenarios (grey shaded area) and of the six SRES illustrative marker scenarios (coloured lines). The inset in the upper left corner shows these scenarios to the year 2100. Misrepresentation of the IPCC CO 2 emission scenarios M. R. Manning, J. Edmonds, S. Emori, A. Grubler, K. Hibbard, F. Joos, M. Kainuma, R. F. Keeling, T. Kram, A. C. Manning, M. Meinshausen, R. Moss, N. Nakicenovic, K. Riahi, S. K. Rose, S. Smith, R. Swart & D. P. van Vuuren Nature Geoscience 3, 376 - 377 (2010)

What Happened to Global Warming?

What Happened to Global Warming?

Judith Lean and David Rind (2009) Geophysical Research Letters

Judith Lean and David Rind (2009) Geophysical Research Letters

Source: Petit et al. (1999). Nature 399: 429 -436

Source: Petit et al. (1999). Nature 399: 429 -436