On Underfrogs

Guest Author: Nicole Kravec

Photo: Milo Inman

The thought of academic expeditions, leeches and Asia brings a smile to my face.  I just read a thought-provoking (and pun filled) article in The Economist about conservation in India with a froggy focus. 

The article focuses on Mr. Sathyabhama Biju Das’ amphibian affinity and makes the overall point tha while growth damages the environment, it also nurtures a countervailing force: rising green consciousness. Continue reading

The Anthropocene

I wrote yesterday about the North American cod stocks that have practically disappeared during the last century as a result of overfishing. Needless to say, this is just one of many species that humans have had a seriously detrimental effect upon in their shaping of the Earth. An article from The Economist this May discusses the geological forces that humans have had on the Earth, focusing on topics like the carbon cycle or nitrogen fixation rather than species extinction.

Paul Crutzen and Eugene Stoermer coined the term “Anthropocene” in 2000 to classify what they see as a new age on the geological time scale, and the fairly abrupt and sharp decline of cod may be one of the many changes visible in the fossil record thousands or millions of years from now. As you can see in the image below, we are currently in the Holocene, but Crutzen and Stoermer, along with many other scientists, including several of those in the International Commission on Stratigraphy (which arbitrates the geological time scale), believe that we have entered an age primarily shaped by Homo sapiens.

Image from The Economist

Continue reading