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Cities help define our global civilisation. For hundreds of years, they have been the hubs around which we organise ourselves politically, commercially and culturally.

So you’re thinking about installing a geothermal cooling and heating system? You can do this, and you have the means to install the best system money can buy for a fair price. There are a lot of competent geothermal HVAC professionals that are willing to help. As in any transaction, you just need to be…

The Obama administration’s proposed new rules on power plant carbon emissions have been cause for celebration among U.S. climate-change activists, many of whom believe the policy sets the stage for a surge in clean energy and energy efficiency investment. (See related story: “Four Key Takeaways from EPA’s New Rules for Power Plants.”) Greentech Media’s Stephen…

Even as wave and tidal energy developers struggle to demonstrate the viability of their myriad designs, another form of marine energy – from ocean currents – has floated into view: This week the U.S. Bureau of Ocean Energy Management (BOEM) signed off on a five-year lease for Florida Atlantic University’s Southeast National Marine Renewable Energy Center…

A top Chinese climate adviser signaled Tuesday that the country planned to set a new cap on carbon emissions by the end of the decade, which would be the first such effort from the world’s largest emitter of greenhouse gases. The comments by He Jiankun, chairman of China’s Advisory Committee on Climate Change, came a…

Zero percent: That’s the U.S. clean energy investment growth rate over the past five years, according to the Pew Charitable Trusts. It might be a distressing sign in the face of the climate-change challenge, but backers of the Obama administration’s new emissions proposals believe the regulations could spur a turnaround—and there are signs that China,…

In an effort to cut dependence on coal and to reduce pollution, Chinese authorities have been encouraging use of more natural gas. China relies overwhelmingly on countries in Central Asia to procure that gas. But as China deepens its energy ties with Central Asia, it may face a predicament that it has not faced yet:…

The weather gods looked kindly on Rotterdam this past week and decided not to interfere with 3,000 students racing for fuel efficiency records in 2014′s Shell* Eco-marathon Europe. Bathed in sunlight, the competitors drove their self-built cars to record-breaking efficiency. As expected, students of Lycee Saint-Joseph la Joliverie from France prolonged their title in the…

It looks like an oversized Lego construction, weighs a mere 81 kilograms (178 pounds) and is assembled from scratch in under two hours. Students of the Aalborg University in Denmark 3D-printed hundreds of parts holding together their car for the Shell Eco-marathon competition in Rotterdam. Is this the future of car manufacturing? (See related post:…

More than 3,000 students from 27 countries compete this weekend in what is without a doubt the slowest racing competition in the world. Speed is nothing to brag about in the 30th edition of the Shell Eco-marathon Europe: It’s all about fuel efficiency. Slowly but surely, 198 student teams drive their self-built cars over a…