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Ink from Diesel Exhaust from Summer 2018 Challenge Magazine

A group of Indian engineers have invented a filter to convert diesel fumes into ink. Fitted to the generators that are widely used during the regular power cuts that cripple India's electricity supplies, the filters remove 90% of the soot particulates in the exhaust gases. The soot is sold on to ink manufacturers. Chakri Innovation have sold 53 machines to governmental agencies, saving 1,500 billion litres of air from pollution. Over a million people die from atmospheric pollution every year in India.

6 Jul 2018
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Conservation Success from Summer 2018 Challenge Magazine

Let's not fool ourselves, the flora and fauna of this planet are under pressure like never before, but we should nonetheless recognise and celebrate each and every conservation success story, if only to encourage us to do work harder. In late May the IUCN brought good news for 12 critically endangered species, among them the Mauritius Falcon which had been reduced to just four known birds in 1974, including one breeding female. Captive breeding, supplementary feeding, nest-site enhancement and predator control, and enabled the population to rise to 400 birds today. Other recovering species include the New Zealand Archery Frog, the greater bamboo lemur, and the Lebanese cedar.

6 Jul 2018
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U.S. Cities go Renewable - article from Summer 2018 Challenge Magazine

More than 70 US cities have adopted a 100 percent renewable electricity goal. That number has doubled over the last twelve months, courtesy of Donald Trump's determination to steer the nation in the opposite direct. Among the latest cities to sign up is one in the deep red south. Atlanta, Georgia has a population of 490,000 and is the largest city in the South. It hasn't set itself the most demanding of targets - the 2050 deadline is fifteen years further away than the politicians wanted - but the path they have chosen is for a homegrown energy transformation rather than relying on out of state wind power.

3 Jul 2018
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