The Independent

Wind turbines amid clouds

Seven countries now generate 100% of their electricity from renewable energy

Albania, Bhutan, Nepal, Paraguay, Iceland, Ethiopia and the Democratic Republic of Congo produced more than 99.7% of the electricity they consumed using geothermal, hydro, solar or wind power. Data from the International Energy Agency (IEA) and International Renewable Energy Agency (IRENA) also revealed that a further 40 countries generated at least 50% of the electricity they consumed from renewable energy technologies in 2021 and 2022.

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Person having blood drawn

Breakthrough Alzheimer’s blood test could detect disease 15 years before symptoms emerge

A recent trial of 786 people – conducted by Dr. Nicholas Ashton at the University of Gothenburg in Sweden and colleagues – found the new test to be as accurate at detecting the signs of Alzheimer’s as painful lumbar punctures, and better than a range of other tests currently being worked on. Experts say it could pave the way for national screening programs for people 50 and over, and that current treatments could work better with the cases picked up earlier.

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Artist's concept of a solar power satellite in place

First ever space-to-Earth solar power mission succeeds

A landmark test of beaming solar power to Earth from a satellite has concluded successfully after a year-long mission. Led by scientists at the California Institute of Technology, the mission completed all three of its primary experiments to test key technology for such an endeavor. They included a new origami-inspired solar panel structure, different cell designs, and a microwave transmitter.

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Illustration of the concept of nuclear fusion

American scientists repeatedly produce nuclear fusion ignition for the first time in history

A team at the Lawrence Livermore National Laboratory has achieved fusion ignition, producing a net energy gain from a fusion reaction for the first time ever. The feat was hailed as a “moment of history” by physicists and another major breakthrough in the quest for near-limitless clean energy.

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