Autor:	Schaub, Georg, Turek, Thomas
Zdroj:	Energy Flows, Material Cycles & Global Development; 2011, p105-132, 28p
Abstrakt:	During the Earth΄s history, there have been significant variations in the global carbon cycle, caused by natural factors (e.g. changes in surface temperature due to changes in solar irradiation). Given these natural changes, variations due to human activities and their causes are difficult to identify. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
Externí odkaz:	Zobrazit plný text záznamu