Environmental

Recent Posts

What is the source of the oceans' production of N2O, a potent GHG?
Posted on 7 Aug 2011 by Thomas H. Clarke, Jr.

The oceans emit an estimated 30% of the nitrous oxide (N2O) entering the atmosphere. Nitrous oxide gives rise to NO (nitric oxide) when it reacts with oxygen atoms, and this NO in turn reacts with ozone. As a result, N2O is the main naturally occurring... Read More

What is third-hand tobacco smoke and is it dangerous?
Posted on 26 Feb 2011 by Thomas H. Clarke, Jr.

In general terms, the phrase "third-hand tobacco smoke" ("THS") refers to the tobacco particulates and gas that get on clothes, in hair, etc. You have smelled it when you approach a smoker, even if they are smoking at that time. Technically... Read More