Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (8 min)

  • Read Frequently Asked Question 7.1 (Are the Increases in Atmospheric Carbon Dioxide and Other Greenhouse Gases During the Industrial Era Caused by Human Activities?, pages 512-513) to understand human contributions to increased greenhouse gas concentrations during and after the Industrial Era. Though Figure 1 has a long caption, pay attention, and read it over as needed to understand the implications of graph (e) in the Figure.