19 Jul 2012:
`Great Green Fleet’ Trial
Launched by U.S. Navy in the Pacific
The U.S. Navy this week held military exercises in the Pacific Ocean that used an expensive blend of biofuels and conventional fuels to power 71 aircraft and three warships,
part of an ongoing effort by the Navy to develop alternative fuels for its global operations. The so-called “Great Green Fleet” initiative is a top priority of Navy Secretary Ray Maybus, who contends that the U.S. military must eventually free itself from dependence on fossil fuels “because unpredictable and increasingly volatile oil prices could have a direct impact on readiness.” But numerous critics, including U.S. Senator John McCain, criticize Maybus’ initiative as unnecessary and costly, noting that the 50-50 biofuel/conventional fuel blend costs $26 a gallon — more than six times the cost of conventional fuels. A Defense Department study said that the military will spend $2 billion more annually if it continues to pursue its biofuels experiments. About 90 percent of the biofuels was rendered from cooking oil waste and the remaining 10 percent was refined from algae. Maybus, speaking aboard the aircraft carrier USS Nimitz, contended that the rising costs of oil and breakthroughs in biofuel production will eventually narrow the price gap between conventional and alternative fuels.
Yale Environment 360 is
a publication of the
Yale School of Forestry
& Environmental Studies
Yale Environment 360
articles are now available in Spanish and Portuguese on Universia
, the online educational network. Visit the site.
Business & Innovation
Policy & Politics
Pollution & Health
Science & Technology
Antarctica and the Arctic
Central & South America
Photographer Robert Wintner documents the exquisite beauty and biodiversity of Cuba’s unspoiled coral reefs. View the gallery.
is now available for mobile devices at e360.yale.edu/mobile
The Warriors of Qiugang
, a Yale Environment 360
video, chronicles a Chinese village’s fight against a polluting chemical plant. It was nominated for a 2011 Academy Award for Best Documentary Short.
Watch the video.
Top Image: aerial view of Iceland
. © Google & TerraMetrics.
A three-part series Tainted Harvest
looks at the soil pollution crisis in China, the threat it poses to the food supply, and the complexity of any cleanup. Read the series.