Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Calvin, William H."'
Autor:
Calvin, William H.
We need enough new carbon sinks to 1) cancel out any continuing use of fossil fuels, 2) overcome the delayed effect of earlier excesses, and then 3) lower atmospheric CO2 concentrations to the old maximum value of 280 ppm. We need to sink about 25 bi
Externí odkaz:
http://arxiv.org/abs/0810.2275
Autor:
Davidson, Iain, Noble, William, Armstrong, David F., Black, L. T., Calvin, William H., Davis, Whitney, Falk, Dean, Foster, Mary Lecron, Graves, Paul, Halverson, John, Hewes, Gordon W.
Publikováno v:
Current Anthropology, 1989 Apr 01. 30(2), 125-155.
Externí odkaz:
https://www.jstor.org/stable/2743542
Publikováno v:
Science, 1967 Feb . 155(3764), 842-844.
Externí odkaz:
https://www.jstor.org/stable/1720261
Autor:
Calvin, William H.
Hominin procedures for fire-starting, sharpening rocks, and softening roots by pounding or chopping require sustained attention for hours; shade is sought in the brush fringe bordering a grassland. Clustering these more versatile adults, while others
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc053a49161186165796e2a58e8ad8f2
https://doi.org/10.1101/164780
https://doi.org/10.1101/164780
Autor:
Calvin, William H.
Publikováno v:
Scientific American, 1994 Oct 01. 271(4), 100-107.
Externí odkaz:
https://www.jstor.org/stable/24942875
Autor:
Calvin, William H.1
Publikováno v:
Scientific American Special Edition. Jun2006 Special Edition, Vol. 16 Issue 2, p84-92. 8p. 3 Color Photographs, 1 Graph.
Autor:
Calvin, William H.
Publikováno v:
Scientific American Presents. 1998, p44-50. 7p. 6 Color Photographs, 2 Graphs.