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One is an eyesore and a health hazard, the other one is plain dirty. So what do you get when you combine processed scrap tires with diesel fuel? In what might be a case of two wrongs making a right, Australian startup Green Distillation Technologies (GDT) has shown that it is possible to get a cleaner blend of fuel by combining oil derived from old tires with diesel.

The mayors of Paris, Mexico City, Madrid, and Athens pledged to phase out cars and trucks powered by diesel engines by 2025. The announcement was made during the C40 Mayors Summit in Mexico City.

the Chicago-based aviation giant reported that it is stepping up efforts to expand the use of sustainable aviation biofuel by seeking U.S. Federal Aviation Administration approval for its aircraft to fly on "green diesel." The proposed new source of aviation biofuel emits at least half the lifecycle carbon dioxide as traditional petroleum-based jet fuel, according to Boeing.

Renewable diesel fuel blend made from sugar did not impact ship engine performance or operation, according to a study by the Maritime Administration.

France yesterday unveiled plans to reduce its carbon footprint by ceasing sales of gas and diesel vehicles by 2040 and then becoming carbon neutral by 2050, Environment Minister Nicolas Hulot said. France also plans to end coal-fired energy production by 2022, cut nuclear power use from 75% to 50% in eight years and halt imports of unsustainably grown palm oil and soy beans.

Britain will ban the sale of new petrol and diesel cars from 2040 in an attempt to reduce air pollution that could herald the end of over a century of reliance on the internal combustion engine. Britain's step, which follows France, amounts to a victory for electric cars that if copied globally could hit the wealth of oil producers, as well as transform car industry jobs and one of the icons of 20th Century capitalism: the automobile itself.

Boeing is seeking to help airlines fly the skies in a more environmentally friendly way.

Renewable energy projects, like a hybrid wind and diesel system on San Cristobal Island, are paving the way for the Galapagos Islands' clean energy future, according to this analysis. Elecgalapagos, a utility tasked with leading the islands' transition away from fossil fuels, has set a goal to source 70% of the Galapagos' electricity from renewables in the near future. San Cristobal is home to three turbines providing about 30% of its electricity needs.

Necker Island, a small Caribbean island owned by business icon Richard Branson, has signed a contract to slash its diesel fuel use by building a renewable energy-powered microgrid.

UPS reached an agreement to purchase 46 million gallons of renewable diesel for its vehicle fleet over the next 3 years, in partnership with Neste, Renewable Energy Group, and Solazyme. The company plans to replace more than 12% of its purchased gasoline with alternative fuels by the end of 2017.

California Gov. Jerry Brown (D) proposed Monday to cut in half the gasoline and diesel fuel used by vehicles and get half the state's electricity from renewable sources.

Royal Caribbean Cruises has announced it will retrofit 19 of its ships with advanced emissions purification (AEP) systems, also known as scrubbers, which will remove more than 97 percent of the sulfur dioxide emissions generated by the ships' diesel engines.

A US Navy ship has operated on a 100 percent drop-in renewable diesel fuel - a first, according to the biofuel makers Applied Research Associates and Chevron Lummus Global.

Indian Power minister Piyush Goyal reportedly announced that India is considering a target to transition the country to a 100% electric vehicle fleet by 2030, according to The Times of India.

Bonaire (pop. 14,500), a small island off the coast of Venezuela, is famous for its beautiful marine reefs, which are visited by 70,000 tourists every year. What many of the tourists don't realize is that the majority of the electricity powering their needs comes from renewable energy. Yet for the residents of Bonaire, the switch from fossil-fueled to renewable energy systems has made a world of difference.