A study by marine engineering experts has set out the likely effects of using biodiesel fuel in Royal Navy warships. As British warships are mostly powered by gas turbines derived from aircraft jet engines, the results are also interesting in the context of future biofuelled aviation and power generation.
science

Could Landfilling Trees Be a Solution to Global Warming?
The whole problem with global warming starts with digging up and burning the carbon from plants and animals, in the form of coal and oil, that has been buried for millions of years. So two German scientists have a solution: Start burying stuff on a massive scale....
One Fifth of US Energy Could Come from Wind: Department of Energy
A new report by the US Department of Energy says that with enough support wind energy could provide 20% of US electricity needs by the year 2030, for only $6 per per a year. Not a bad deal!
ClimatePULSE: Municipalities and Carbon Markets (Part 1)
Municipalities and their projects can generate credits in numerous ways, but they need to understand that having a project that reduces GHG emissions is only the first step. To generate credits, a municipality needs also to (1) have clear ownership of the reductions, and (2) be able to account for the emissions in a very detailed and accurate way.

The Great Warming: A Green Book Review
Between about A.D. 800 to 1200 there was a period that is commonly called the Medieval Warm Period that was characterized by milder, warmer temperatures in Europe. The warming allowed for increased exploration...

Free CFL Light Bulb Offer (one per household)
Many people don't buy CFLs because they feel they're too expensive. Accent Energy is giving away one free CFL bulb per person, so let people know about this offer, and they can start conserving electricity right away (and saving money!).
A major step towards greener paint with Ecosure
People and businesses are becoming increasingly concerned about climate change and the need to actively reduce our impact on the environment by acting in a more sustainable way. Against this background Dulux Trade is meeting the sustainability challenge head-on with the launch of Ecosure, the first step towards environmentally sustainable paint with reduced carbon and VOCs.
Wolf pups make 1st public appearance. Help us name them!
12-day-old bundles of fur stepped into the public spotlight at the Wildlife Science Center in Forest Lake Friday.

New Poll: Americans Remain Confused About Global Warming
Despite the massive amounts of scientific evidence showing humans are to blame for climate change, a new poll finds that only about half of Americans (47%) say the earth is warming because of human activity, such as the burning of fossil fuels.
Students show off sassy new solar car
Check out this cool new solar car students at the University of Minnesota built!
China, Tibet, and the strategic power of water
A number of influential scientists and experts in Asian studies now say that control and management of an even more vital resource – the Tibetan Plateau’s vast supply of freshwater – is also emerging at the center of the increasingly tense political and cultural strife between China and Tibet.
Transportation Fuel Produced From Trash in World's Largest Plant in 2009
300 garbage collection trucks in California will soon be fueled by the same trash that they haul. Landfill gas will be
purified and liquefied, producing up to 13,000 gallons of liquefied natural gas (LNG) daily.
Unsustainable fishing causing 'toxic tides'
Today I saw this article reporting on a study clearly linking declining fish stocks to algal blooms (so-called 'toxic tides'). For me this situation drives home three things about sustainability.

1956 New York Times Article Warned of Warmer Climate
Seems that the idea that human activity is causing climate isn't new at all. The headline in the October 28, 1956 edition of the New York Times warns:
"WARMER CLIMATE ON THE EARTH MAY BE DUE TO MORE CARBON DIOXIDE IN THE AIR"
How to Conserve Energy with Retractable Patio/Window Awnings
According to a study conducted by the American Society of Heating and Air Conditioning Engineers, solar radiation through glass is responsible for approximately 20% of the load on an air conditioner.