Energy implications of future stabilization of atmospheric CO2 content

Article Abstract:

The United Nations (UN) has called for greenhouse gas concentration to be stabilized in its Convention on Climate Change, in order to prevent global warming. Stabilization will need cost-effective and innovative technology if economic growth is to continue, and this is true even if the productivity of primary energy is improved on a sustained basis. The lower the emission targets, the more carbon-emission-free power will be needed. There is a need for large investments in energy research due to the major challenge involved in infrastructure transition.

Energy policy, Environmental aspects, Power resources, Greenhouse gases

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Deriving global climate sensitivity from palaeoclimate reconstructions

Article Abstract:

It must be determined how sensitive the Earth's climate is to radiative forcing if the impact of greenhouse gases generated by human activity is to be estimated. The past climates of the Earth can be reconstructed and used to determine the radiation forcing sensitivity, independently of general circulation models (GCMs). A surface temperature rise of 2.9 C plus or minus 0.9 C is found for a doubling of atmospheric carbon dioxide. This number is consistent with estimates derived from GCMs, and may be used to make those models more precise.

Models, Paleoclimatology

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Solar variability and the earth's climate

Article Abstract:

The views of E.N. Parker on the potential impact on terrestrial climate, published with the paper on solar variability of M. Lockwood and others are inaccurate and out of line with Lockwood's evidence. Parker's suggestion that solar brightening causes an increase in carbon dioxide levels comparable with the expulsion of carbon dioxide from a warm carbonated drink is exaggerated.

Criticism and interpretation, Parker, E.N.

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