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By Valerie Volcovici and David Stanway BEIJING (Reuters) -U.S. climate envoy John Kerry said more work was needed to iron

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TORONTO--(BUSINESS WIRE)--Sep 19, 2023--

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Solar panels and screens could become vastly more easy to make after a major breakthrough, according to the scientists who found it. The new discovery swaps an everyday material for one almost as rare as gold, the researchers say, and so could drastically cut the price of manufacturing the technology that relies on it. The breakthrough came after scientists discovered that chromium compounds can replace the metals osmium and ruthenium, which are used to harvest energy from the Sun and to create displays for uses such as mobile phones. Chromium is a relatively common material, best known for its use in chromium steel in the kitchen, or for the shiny look of motorcycles. It is also relatively easy to find: chromium is 20,000 times more prevalent in the Earth’s crust than osmium, and much cheaper to make. Scientists hope that it can be used for a variety of purposes, including a kind of artificial photosynthesis that will produce solar fuels. Plants are able to use that process to convert energy from sunlights into energy-rich glucose – and the scientists behind the new study say that it could help us do the same. The findings are described in a new paper, ‘Photoredox-active Cr(0) luminophores featuring photophysical properties competitive with Ru(II) and Os(II) complexes’, published in Nature Chemistry. Read More Astronomer uncovers ‘direct evidence’ of gravity breaking down in the universe Mark Zuckerberg hits out at Elon Musk for wasting time over cage fight Vote to empower autonomous ‘robotaxis’ from Cruise and Waymo divides San Francisco

NEW YORK Short sellers in shares of Nvidia Corp. were down $4.1 billion in mark-to-market losses over the

Solar energy has reached an “irreversible tipping point” that will see it become the world’s main source of energy by 2050, according to a new study. Researchers at the University of Exeter and University College London analysed recent technological and economic advances to determine that the transition to clean energy is not just reachable, but inevitable. “The recent progress of renewables means that fossil fuel-dominated projections are no longer realistic,” said Femke Nijsse from the University of Exeter. “Using three models that track positive feedbacks, we project that solar PV will dominate the global energy mix by the middle of this century.” Barriers may still arise to hamper this positive trend, the researchers noted, including political resistance from anti-environmentalists and the lack of financing for solar power in developing countries. “Solar energy is the most widely available energy resource on Earth, and its economic attractiveness is improving fast in a cycle of increasing investments,” the researchers wrote in a study detailing their findings. “We find that, due to technological trajectories set in motion by past policy, a global irreversible solar tipping point may have passed where solar energy gradually comes to dominate global electricity markets, without any further climate policies.” The study, titled ‘The momentum of the solar energy transition’, was published in the journal Nature Communications. The latest research comes less than a month after a Berlin-based research institute calculated that fossil fuel-generated power will no longer be economically viable within the next 30 years due to the plummeting costs of solar, batteries and other renewable technologies. The Mercator Research Institute on Global Commons and Climate Change (MCC) found that the transition to renewable energy was “cheaper than expected” and could make fossil fuels obsolete by 2050. “This is an extremely optimistic scenario – but it illustrates that the future is open,” MCC researcher Felix Creutzig noted. “Climate science, which provides policymakers with guidance in its scenario models, must reflect technical progress as closely as possible.” The UK saw a record-breaking year for renewable energy last year, and is on track to do the same in 2023 following the installation of new solar and wind plants. Wind, solar, biomass and hydro power generated 40 per cent of the country’s electricity in 2022, according to figures compiled by Imperial College London, up 5 per cent from the year before. Read More Fossil fuels ‘becoming obsolete’ as solar panel prices plummet Solar panel breakthrough could supercharge ‘miracle material’ production ‘Game-changing’ facial recognition technology catches prolific shoplifters WhatsApp update will change how you log in forever Amazon trials humanoid robots to see if they can help staff warehouses

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