Don Bogard, research scientist and member of The Right Climate Stuff, TRCS, team, website: http://www.therightclimatestuff.com/. This is a description of movement of man-made carbon dioxide between major carbon, C, reservoirs: atmosphere, plants, soil, surface ocean, etc. The fraction of human C in the air today, to a first order, reflects the total size of C reservoirs with which all human C over time has been mixed. The fraction of human C present in today's atmosphere says little about the total amount of human C added UNLESS one considers the total C inventory of all C reservoirs (atmosphere, plants, soil, surface ocean, etc.) that experience C exchange.
Associated Press: Researchers in South Africa have unveiled what they call "by far the most complete skeleton of a human ancestor older than 1.5 million years ever found." The skeleton dates back 3.6 million years. Its discovery is expected to help researchers better understand the human ancestor's appearance and movement. "Not only is Africa the storehouse of the ancient fossil heritage for people the world over, it was also the wellspring of everything that makes us human, including our technological prowess, our artistic ability and our supreme intellect,"
Roger A. Pielke, Sr., Emeritus Professor of Atmospheric Science at Colorado State University. Served as Chairman and Member of the American Meteorological Society Committee on Weather Forecasting and Analysis, as Chief Editor of Monthly Weather Review, Fellow of the American Meteorological Society. Humans are significantly altering the global climate, but in a variety of diverse ways beyond the radiative effect of CO2.
To say that the Earth is a human planet becomes truer every day. Humans are made from the Earth, and the Earth is remade by human hands. Many earth scientists express this by stating that the Earth has entered a new geological epoch: the Anthropocene, the Age of Humans.
As scholars, scientists, campaigners, and citizens, we write with the conviction that knowledge and technology, applied with wisdom, might allow for a good, or even great, Anthropocene. A good Anthropocene demands that humans use their growing social, economic, and technological powers to make life better for people, stabilize the climate, and protect the natural world.