Geologists estimate that British shale gas reserves could supply its natural gas needs for decades. So-called fracking could unlock much more gas than older methods – but environmentalists are strongly opposed.
While diesel cars increasingly look to be on the way out, another big polluter is often ignored: shipping. Will electric vessels, including the first e-barges, help the industry clean up its act?
More than 100 cities worldwide get at least 70 percent of their electricity from renewable sources, according to a new initiative. How did they manage and what can we learn from them?
Cities hold tons of materials that can be reused — and doing so can address over-exploitation of scarce natural resources. From buildings to electronic waste, we are surrounded by value. So how does urban mining work?
Oil and coal consumption around the world must be reduced if global warming is to be kept to 2 degrees maximum. It's cause for concern — and motivation for change. Is there an end in sight to fossil fuel energy?
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