Bank of America Corp. returned to the green bond market last week, ending a seven-month issuance drought for

It feels like every day there’s a science story that comes along ready to blow our tiny minds, and today is no exception. A series of ancient interconnected cities have been discovered in the remote El Mirador jungle Guatemala, and it’s changing our entire understanding of the ancient civilisation. More than 400 settlements have been uncovered with some dating back as far as 1,000 BC. They’re linked by roads too, and it’s led them to be described as “the first freeway system in the world”. Sign up to our free Indy100 weekly newsletter Richard Hansen, a research professor at the University of Idaho, is an expert on the project and he’d called the findings a “game-changer”. It was previously thought that the Mayan peoples were nomadic, but these cities have changed the scientific community’s understanding. Speaking to the Washington Post, Hansen said: "We now know that the Preclassic period was one of extraordinary complexity and architectural sophistication, with some of the largest buildings in world history being constructed during this time.” On top of the 110 miles of interconnected roads, the discoveries also showed evidence of organised agriculture and even hydraulic systems. The findings are the result of work which first began in 2015, which saw lidar technology uncovered signs of ancient structures below the surface. Archaeologist Enrique Hernández, from San Carlos University said about the findings: “Now there are more than 900 [settlements]… We [couldn’t] see that before. It was impossible,” he said. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Solar panels combined with next-generation batteries now outperform military-grade diesel generators, according to new analysis. Researchers at the US Department of Energy’s National Renewable Energy Laboratory (NREL) found that the novel clean energy solution was both cheaper and more reliable than its fossil fuel-powered counterpart. Tests of the two systems were carried out in accordance with the US Department of Defense’s requirements to sustain critical electric loads during a power outage over a 14-day period. The solar systems proved to have a higher resilience and lower cost compared to the diesel-based systems that are currently used, while also being less vulnerable to interruptions in the diesel supply. The researchers also highlighted the net present value (NPV) of the solar storage system, meaning it pays for itself in the long term. “The diesel-fuel-free LDES system outperforms the traditional diesel-based system and provides a large net saving that can be used to pursue third-party financing,” the researchers noted. “The continued rapid decline in photovoltaic (PV) costs allows for utility-scale PV to be economically attractive at many locations. These declines are expected to continue, which will further increase the positive NPV in the future.” The tests were performed on three separate military bases, using an innovative carbon-based battery rather than the more expensive lithium-ion batteries that are typically found in such renewable energy storage systems. The batteries tested in the experiments were Antora Energy’s battery energy storage system (BESS), which the researchers warned were not yet ready for full-scale deployment. The results of the study, however, mean decision makers are already anticipating their roll out. Michael McGhee, the Acting Deputy Assistant Secretary of Defense, described the new system as “the most likely way to easily and simply generate power without the need for off-base supply chains”. The results of the research were published in a study, titled ‘Long-duration energy storage: resiliency for military installations’. Read More Solar panel advances will see millions go off grid, scientists predict

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A Georgia teacher is facing termination after reading a book about gender identity -- which some parents complained was controversial -- to her fifth grade class.

Elizabeth Holmes' last-minute bid to avoid prison was denied by an appellate court on Tuesday, paving the way for the disgraced Theranos founder to begin her sentence.

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By Elizabeth Howcroft and Medha Singh LONDON For Lee Rees, 43, FTX was one of a handful of

VISSENBJERG, Denmark--(BUSINESS WIRE)--May 9, 2023--

The European Union’s landmark green deal is at risk of being dragged into the “culture wars,” said the

Dapper Labs Inc., creator of the NBA Top Shot marketplace for nonfungible tokens, announced further jobs cuts amid

Bitcoin hit its highest level in a year amid renewed fervor for digital assets despite a slew of