Environmental

Recent Posts

Another BPA issue -- it may cause undesirable activation of estrogenic genes
Posted on 31 Aug 2011 by Thomas H. Clarke, Jr.

Prior posts have followed the debate over BPA and its potential problems. In a recently reported study, researchers have raised a new issue, the activation of estrogen-related genes. Exposure of animal and cell models to doses of BPA below the recommended... Read More

Another BPA issue -- it may cause undesirable activation of estrogenic genes
Posted on 31 Aug 2011 by Thomas H. Clarke, Jr.

Prior posts have followed the debate over BPA and its potential problems. In a recently reported study, researchers have raised a new issue, the activation of estrogen-related genes. Exposure of animal and cell models to doses of BPA below the recommended... Read More

Could humans have been influencing climate as long as 15 thousand years ago?
Posted on 1 Sep 2010 by Thomas H. Clarke, Jr.

When someone mentions "climate change" and people, most of us think about the start of the industrial revolution. Those with a more anthropological viewpoint will think about the advent of slash-and-burn agriculture some 8 thousand years ago... Read More

Have past blood tests for BPA been faulty? Recently published study so claims
Posted on 26 Apr 2013 by Thomas H. Clarke, Jr.

Prior posts have noted in detail the results of various studies of the impacts of BPA on various test media (e.g., animals). Prior posts have described the ongoing public debate over BPA and its listing and then delisting as a reproductive toxicant under... Read More

Was humankind's first exit from Africa a failed activity?
Posted on 12 Mar 2011 by Thomas H. Clarke, Jr.

Prior posts have noted that the accepted wisdom is that some humans left Africa about 60 thousand years ago, and thereafter migrated all over the world. Now, researchers have found stone tools at a site in the Arabian Peninsula that suggests movement... Read More