Environmental

Recent Posts

Some aircraft designers think outside the box to improve efficiency
Posted on 24 Mar 2011 by Thomas H. Clarke, Jr.

Concern has been expressed in recent years over the contribution of aircraft to GHG emissions. Some airlines have gotten favorable publicity for experimenting with bio-derived fuels. But, what if aircraft were to target reducing fuel consumption by half... Read More

Assessment of preliminary data indicates that 2010 ties record for warmest year
Posted on 28 Jan 2011 by Thomas H. Clarke, Jr.

NASA and the National Oceanic and Atmospheric Administration released their analyses of global surface temperature data for 2010. Both found that 2010 was slightly warmer than 2005, but that the difference was not statistically significant. Combined... 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

Data from crop trials demonstrates threat climate change poses to crops
Posted on 27 Mar 2011 by Thomas H. Clarke, Jr.

Serendipity has helped more than a few scientists with insights and discoveries. Researchers were chatting, and realized that data from work one of them was focused upon various crop trials spread across southern and eastern Africa, if correlated with... Read More