Energy & Green Tech

Portugal bets all on renewables after abandoning coal

As the UN steps up calls to make the switch to renewable energy to fight the global climate emergency, Portugal is among the first European Union countries to abandon coal.

Energy & Green Tech

UN urges 'complete transformation' of global energy system

Climate change risks undermining global energy security unless the use of renewables is dramatically scaled up, the UN warned Tuesday, suggesting the Ukraine conflict's ripple effects could speed up the green transition.

Engineering

World's first LED lights developed from rice husks

Milling rice to separate the grain from the husks produces about 100 million tons of rice husk waste globally each year. Scientists searching for a scalable method to fabricate quantum dots have developed a way to recycle ...

Business

Flying green will be more expensive

Under huge pressure to go green, the aviation industry needs to spend billions of dollars to become more climate-friendly in what risks ramping up fares and making air travel the preserve of the rich once again.

Energy & Green Tech

Harnessing sunlight to pull hydrogen from wastewater

Hydrogen is a critical component in the manufacture of thousands of common products from plastic to fertilizers, but producing pure hydrogen is expensive and energy intensive. Now, a research team at Princeton University ...

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