In 2016, the Oklahoma Energy Resources Board (OERB) published the fourth volume of its “Petro Pete” series of illustrated children’s books. To promote Petro Pete’s Big Bad Dream, K-2 classes throughout the state were invited Continue reading
Author Archives: Jim Zeigler
“When did the Anthropocene begin? A mid-twentieth century boundary level is stratigraphically optimal”
Zalasiewicz, J., et al., 2015. Quaternary International, 383, pp. 196-203.
We evaluate the boundary of the Anthropocene geological time interval as an epoch, since it is useful to have a consistent temporal definition for this increasingly used unit, whether the presently informal term is eventually formalized or not. Continue reading