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

Columbia Law School Center for Climate Change Law: EPA Launches Sustainable Communities Building Blocks Program
Posted on 19 Apr 2011 by J. Cullen Howe

By J. Cullen Howe, Environmental Law Specialist, Arnold & Porter LLP In February 2011, EPA launched its Sustainable Communities Building Blocks Program . The program is seeking to make tools and resources available to communities wishing to... Read More

Arctic salt clouds are reducting the impact of Global Climate Change on the Arctic region
Posted on 15 May 2011 by Thomas H. Clarke, Jr.

Prior posts have noted both the various impacts of Global Climate Change ("GCC") on various aspects of the Earth and its atmospheric systems, as well as the failure of many/most models to include such impacts within their parameters. For example... Read More

Trees damaged by bark beetles slow their uptake of CO2 for up to a century
Posted on 20 Apr 2011 by Thomas H. Clarke, Jr.

As noted in prior posts, bark beetles damage large forest areas, often killing or causing the death of 50% to 80% of mature trees. As these trees decompose, they release CO2, adding to the atmospheric burden of GHG's. New research has identified additional... Read More

Early European explorers of North America may have indirectly triggered the Little Ice Age by exposing the local population to new diseases
Posted on 17 Oct 2011 by Thomas H. Clarke, Jr.

By the end of the 15th century, between 40 and 80 million people are thought to have been living in the Americas. Many of them burned trees to make room for crops, leaving behind charcoal deposits that have been found in the soils of Mexico, Nicaragua... Read More