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Hot Topics
  • July 28, 2025 | Urban Heat Islands ‘Increasing Faster’ in Poorer Cities
  • July 2, 2025 | The Gas is Always Greener on the EU Side
  • July 2, 2025 | The Role of Energy in the Oman Economy: Opportunities, Outlook
  • July 2, 2025 | Chavalon
  • July 2, 2025 | The New Frontiers of Water Electrolysis
  • July 2, 2025 | Cement Kilns With No Limestone
  • July 2, 2025 | The Spotlight That Bees Deserve
  • June 23, 2025 | A New Mall for The Village: How Carbon Credit Dollars Affect Indigenous People in Guyana
  • June 20, 2025 | Citizens and State at Odds Over Chile’s Rucalhue Dam
  • June 12, 2025 | How Volcanologists Can Improve Urban Climate Resilience

Green Tech December 28, 2021

How we measure energy efficiency in homes isn’t working

If you’ve ever rented or bought a house, you’ve probably come across energy performance certificates (EPCs). These certificates, with their brightly coloured bar charts, adorn…


Climate Change, News & Comments, Policy & Strategy December 24, 2021

Warning of Climate Chaos, New 350.org Campaign Demands Fed ‘Stop Fossil Fuel Finance’

The grassroots environmental advocacy group 350.org on Tuesday launched the “Fossil Free Federal Reserve” campaign, demanding the Fed codify its climate responsibility and calling on U.S….


Power to X December 21, 2021

Power-to-x fuels are key for climate-friendly shipping and aviation

Electricity-based synthetic fuels – so-called power-to-x fuels (PtX) – are a “central building block” in making maritime and air transport climate-friendly, environment minister Svenja Schulze…


Climate Change, Fossil Fuels, Policy & Strategy December 17, 2021

Hundreds of planned coal mines ‘incompatible with 1.5C target’

Proposals to build hundreds of new coal mines could raise global output of the fossil fuel by 30%, putting the world’s climate goals or up…


News & Comments, Smart cities December 14, 2021

Cooler, Cleaner Megacities, One Rooftop Garden at a Time

Growing greens can be a powerful tool for change. The view of Cairo from the air is one of concrete buildings and tangled overpasses stretching as…


News & Comments, Renewables December 10, 2021

The number of lives that clean energy could save, by U.S. state

Air pollution from burning fossil fuels causes over 50,000 U.S. deaths and $445 billion in economic damage annually. The United States can achieve net-zero carbon…


News & Comments, Power to X, Renewables December 7, 2021

Creating zero-emission aviation with hydrogen and electric power

The path to zero emissions for the aviation sector by 2050 requires a combination of solutions where new propulsion and fuel technologies will play a…


Nature & Environment, News & Comments December 3, 2021

Tougher environmental policies can create economic winners

There seems to be a working assumption that if Australia adopts tougher environmental policies, our economic growth will be undermined. But new research finds the…


News & Comments, Smart cities November 30, 2021

No renovation wave in sight across EU recovery plans in central and eastern Europe

In the national recovery and resilience plans, energy efficiency and building renovations can play a key role for Member States to achieve the required target…


Climate Change, News & Comments November 26, 2021

Small climate changes can have devastating local consequences – it happened in the Little Ice Age

The Little Ice Age brought some bitter extremes. Pieter Bruegel the Elder, 1565 Dagomar Degroot, Georgetown University In recent weeks, catastrophic floods overwhelmed towns in…


News & Comments, Power to X November 23, 2021

Space tourism: rockets emit 100 times more CO₂ per passenger than flights – imagine a whole industry

Space tourism: rockets emit 100 times more CO₂ per passenger than flights – imagine a whole industry Eloise Marais, UCL The commercial race to get tourists…


Nature & Environment, News & Comments November 19, 2021

4 Major Environmental Treaties the U.S. Never Ratified — But Should

Most of the world’s countries support these global agreements on conservation and pollution, but the United States is noticeably absent. In one of his first…


News & Comments, Smart cities November 16, 2021

Being smart about smart cities: A governance roadmap for digital technologies

Governance is emerging as a serious consideration when it comes to the use of advanced digital technologies to drive smart city objectives. Cities looking to…


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Last Issue

  • July-September 2025 (ONE)July-September 2025 (ONE)
Sunset in Cairo, from Al-Azhar Park. Photo credits: Matt Wan (Flickr)

Urban Heat Islands ‘Increasing Faster’ in Poorer Cities


Combined cycle gas fired power plant. Photo credits: peoplepoweredbyenergy (Wikimedia) / Modified by ONE

The Gas is Always Greener on the EU Side


Birkat Al-Mawz, Oman. Photo credits: Marc Veraart (Flickr)

The Role of Energy in the Oman Economy: Opportunities, Outlook


Chavalon


Bubbles on surface of water. Photo credits: Connie Ma (Wikimedia)

The New Frontiers of Water Electrolysis


Typha latifolia in Germany. Photo credits: katrin_simon (Wikimedia)

Cement Kilns With No Limestone


Bumblebee feeding on nectar. Photo credits: Elisabetta Fenu

The Spotlight That Bees Deserve


Kaieteur Falls, Guyana. Photo credit: Dan Sloan (Flickr)

A New Mall for The Village: How Carbon Credit Dollars Affect Indigenous People in Guyana


Biobío River in the region of Lonquimay, Chile. Photo credit: Hermessolar (Wikimedia)

Citizens and State at Odds Over Chile’s Rucalhue Dam


Panorama of Portland, Oregon. Photo credit: King of Hearts (Wikimedia)

How Volcanologists Can Improve Urban Climate Resilience


The Lost Bayou: Grand Bayou

Grand Bayou, LA. At one time, it was a lively community of close-knit families, until they were forced to leave. ©2020. Garde Voir Ci magazine. Nicholls State University Department of Mass Communication.
View More

World Rainforest Day

Rainforests cover only 2 percent of the planet’s surface area but are responsible for more than 25% of all Western medicine and house more than 50% of the world’s plant and animal species.
View More

Plastic litters one of the world's remotest islands - Henderson Island

Plastic litters one of the world's remotest islands - Henderson Island
View More
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