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New trains for old tracks – how Guatemala City aims to tackle its traffic chaos

Sometimes clean and efficient energy solutions do not require rocket science or fancy buzzwords, such as block chain or other digital jargon. When it comes to reforming public transportation in urban areas the City of Guatemala is now retrieving old train tracks – put in place in the late 1800s to aid the country’s growing banana exports – to solve its mounting traffic nightmare. Rebecca Bertram reports

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Greta’s Coming for Us: It’s the climate-change believers she’s out to flip

On a high-speed, zero-emissions vessel, Greta Thunberg arrived in the
U.S. from Europe on August 29 – a masterpiece of symbolism and PR savvy, the kind which by now we’ve come to expect from the Swedish teenager and her fellow activists in the Fridays for Future movement. In the space of just one short year, their audacious “school strikes” on Fridays have prompted a startling reality check among citizens and politicos in much of Europe and beyond, including German chancellor Angela Merkel – but, alas, not in the US. Paul Hockenos reports

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Gagging on America’s freedom gas

As utilities across Europe make the switch from coal to gas, CO2 emissions there are falling. But on the other side of the Atlantic, ever-rising fracking production deteriorates air and water quality, impacting public health. Buchsbaum reports from Colorado where ozone and other industry associated pollutants regularly makes outdoor exercise dangerous.


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How AI and robots will help safeguard our offshore energy infrastructure in the future

The modern world depends on the smooth provision of vital services such as energy, transportation, telecommunications, food, water and healthcare. But the systems underpinning these sectors are increasingly complex and interdependent, interacting at a global scale – which makes them susceptible to potentially catastrophic failures when they come under stress. David Flynn and Valentin Robu report

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The Triumphant Return of Community Energy

About five years ago, decentralized community energy, though etched in history books for having sparked Europe’s clean-energy revolution in the 1990s, was deemed outdated in the age of the ever-more dramatic climate crisis. Paul Hockenos explains the development.

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