Biodiesel & Ethanol Net Energy

Read Rob Parsons Article to which DuByne is responding Read Rob Parsons Response to the DuByne letter   Letter to Maui Time by David DuByne April 5, 2007 (Headings and empahasis added by webmaster) Oilwell Production is Down To follow up on the article “Potential Energy” by Rob Parsons in your Feb. 15, 2007 edition, we first need to understand why the switch to ethanol is happening. It’s called oil depletion or peak oil. Inside … Read more

jatropha

From www.scienceinafrica.co.za which is conducting water usage studies on Jatropha in Africa. The Jatropha curcas tree, originates from Mexico. It’s oil-producing seeds (30%-35% oil) and entire plant are inedible (toxic) to humans, and most animals and birds. It produces for 50 years. A small tree or shrub with a maximum height of 5 m, Jatropha curcas reportedly grows readily in areas of low rainfall (from 250 mm a year) and in poor soils, however, yield … Read more

Nat’l Biodiesel Board’s Life Cycle Paper

In May of 1998, the US Department of Energy (DOE) and US Department of Agriculture (USDA) published the results of the Biodiesel Lifecycle Inventory Study. It compared findings for a comprehensive “cradle to grave” inventory of materials used; energy resources consumed; and air, water and solid waste emissions generated by petroleum diesel fuels and biodiesel in order to compare the total “lifecycle” costs and benefits of each of the fuels. This 3.5-year study followed US … Read more

Maui Group Salutes Environmental Heroes At Silver Anniversary Awards Ceremony

The Maui Sierra Club Executive Committee extends a hearty “mahalo” to all those volunteers, community members and local businesses who made our 25th Anniversary Silver Moon Gala a resounding success. See complete list below. Maui Group Salutes Environmental Heroes At Silver Anniversary Awards Ceremony The Maui Group’s quarter century of accomplishments have been made possible through the dedicated efforts of numerous Group members and allies. During its November 3, 2006 Silver Anniversary Gala, the Group  presented … Read more

Sand Exports

2006 Report The Maui Inland Sand Resource Quantification Study prepared for the County of Maui Department of Public Works and Environmental Management is now posted on the County of Maui website athttp://www.mauicounty.gov under “New Additions.” “The information contained in the study verifies what we have long believed,” said Mayor Alan Arakawa, “that our sand resources are finite and that perhaps we should consider a moratorium on sand exports to preserve this resource a long as possible for the … Read more