Environmental

Recent Posts

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

Natural gas development poses a risk of enhancing GHG emissions due to "leakage", note new studies
Posted on 11 Apr 2011 by Thomas H. Clarke, Jr.

Several prior posts have noted the greenhouse impact of methane (aka natural gas); it has many times the warming effect as carbon dioxide (CO2), which seems to be the focus of so much discussion about global warming. The posts have focused on the numerous... 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

The trend toward use of heavier crudes increases the carbon footprint of petroleum products
Posted on 6 Dec 2010 by Thomas H. Clarke, Jr.

Heavier crudes are, by definition, more viscous. The also contain greater amounts of sulfur, which must be removed because of the adverse impact of sulfur on various catalysts used in the refining process. The sulfur content of fuel is also controlled... Read More

The solar cycle is decreasing the impact of GHG emissions, but probably only for the near-term
Posted on 21 Apr 2011 by Thomas H. Clarke, Jr.

The sun's activity waxes and wanes on a cycle that averages roughly 11 years, though cycles as short as nine years and as long as 14 years have been observed. Chinese astronomers were already tracking the sun's activity using sunspots more than... Read More