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Ways to help reduce light pollution and keep night skies dark and clear.

How to reduce the amount of trash you make at home.

Tips on how to reduce fuel consumption and save gas including tune up tips, air pressure and add on devices.

How to cut down on light pollution from your home and keep night skies dark.

How to reduce your water use by xeriscaping and using rain barrels.

To "refresh your recollection" (I am a former lawyer, after all), let me take you back. Good Guide is a beta site that rates products on three scales: environmental, nutritional, and social justice (my terms, not theirs). They reduce a product and its producer to three numerical scores, with 10 being the top score. Then they combine the three scores to a single score purporting to rate a product/producer overall. More than a month ago, I wrote to Good Guide through its website asking for help in understanding how it could rate a commercial "lite" yogurt (Yoplait) with all its additives, so much higher than an organic, plain whole milk (Straus) made from nothing more than organic whole milk and live yogurt cultures, and higher than an organic nonfat plain (Nancy's) made from nothing more than organic nonfat milk and live yogurt cultures.

Researcher Alexa Spence has spent years looking at the psychological issues around recent advances in energy technology, from uncovering the value of the 'freeloading' flatmate in reducing domestic consumption to studying how businesses can motivate staff to reduce energy usage.

The UK Government has proposed to reduce support for anaerobic digestion projects in the UK by slashing subsidies and reducing the amount of energy they can provide. There is a lot of innovative technology in the sector, but is this enough to keep...

The UK announced a £7bn package in the 2014 budget to reduce energy costs for British manufacturers and households by 2019, and GDF Suez launched the Sohar 2 and Barka 3 gas-fired combined cycle gas turbines (CCGT) plants in Oman.

(Picture: Acre news agency.) The Brazilian government has inaugurated yesterday the first factory to produce condoms with latex from Amazon trees. The company, called Natex, is located in Xapuri, in Acre State (Northwest Brazil). According to Acre's news agency,

Mildura Solar Power Station is a concentrating photovoltaic (CPV) project being built in Carwrap, south of Mildura in the state of Victoria, Australia. The project will use high performance solar cells used to power satellites. The plant was proposed to have an installed capacity of 100MW initially to reduce the annual greenhouse gas emissions by 396,000t.

The US Environmental Protection Agency has been accused of 'waging a war' on coal after announcing proposals to reduce CO2 emitted by coal-fired power plants. Industry has called the proposals "extreme" and "ill-advised" and it is poised for a fight. But should the EPA be the coal industry's only concern?

Alstom recently announced it was installing a new flue gas corrosion protection system at the Weiher coal power plant in Germany to protect its boiler evaporator walls against corrosion by reduced oxygen potential. With plants expected to run for decades

In the battle to reduce energy poverty, the opportunities that satellite imaging data offers could be key to shining a light on wasteful inefficiencies. Andy Tunnicliffe speaks to E.ON to find out more about a project to use space-based technology to improve energy efficiency.

India's largest power utility NTPC has plans to use biomass to co-fire all its coal-based power plants. The decision is a bold move that will reduce the company's overall carbon emissions, but what challenges might it face during implementation and how will the change impact India's overall energy mix? Heidi Vella investigates