Bill awaiting DeSantis' OK would end years of renewable energy policies
A bill sitting on Gov. Ron DeSantis' desk would end the state's support of renewable and clean energy and keep Florida reliant on fossil fuels, critics say.
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A bill sitting on Gov. Ron DeSantis' desk would end the state's support of renewable and clean energy and keep Florida reliant on fossil fuels, critics say.
12 hours ago
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A small team of materials scientists and environmental engineers at Imperial College London has found that using olivine in cement could result in carbon-negative concrete. In their study, published in the journal Royal Society ...
Charge-recharge cycling of lithium-super-rich iron oxide, a cost-effective and high-capacity cathode for new-generation lithium-ion batteries, can be greatly improved by doping with readily available mineral elements.
May 2, 2024
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Plans to revive an old coal-fired power station using bioenergy are being considered in the Hunter region of New South Wales. Similar plans for the station have previously not gone ahead. As we grapple with decarbonization, ...
May 1, 2024
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Whether on Earth or in space, autonomous energy is critical in order to keep power systems running independently for extended periods of time, particularly in remote or unpredictable environments.
Apr 24, 2024
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Citizens will need greater financial support and advice as they make the switch to decarbonized heat sources, research from Cardiff University shows.
Apr 23, 2024
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A technology that harnesses solar energy to produce high-efficiency ammonia (NH3) has been unveiled by a research team affiliated with UNIST.
Apr 19, 2024
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As the globe grapples with the urgent need to shift from fossil fuels to sustainable energy sources, solar power stands as a beacon of hope. However, a significant challenge has been to efficiently capture and utilize the ...
Apr 18, 2024
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It's a major contributor to climate change—the way buildings and roads are made with concrete. It's also a problem that's growing as more of the world develops. So the race has been on to find solutions for a material that's ...
Apr 12, 2024
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Amin Nasser, chief executive of the world's largest oil company Saudi Aramco, recently called on nations to "abandon the fantasy" to phase out fossil fuels, adding that the transition to renewable energy sources is "visibly ...
Apr 10, 2024
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Fossils (from Latin fossus, literally "having been dug up") are the preserved remains or traces of animals, plants, and other organisms from the remote past. The totality of fossils, both discovered and undiscovered, and their placement in fossiliferous (fossil-containing) rock formations and sedimentary layers (strata) is known as the fossil record. The study of fossils across geological time, how they were formed, and the evolutionary relationships between taxa (phylogeny) are some of the most important functions of the science of paleontology. Such a preserved specimen is called a "fossil" if it is older than some minimum age, most often the arbitrary date of 10,000 years ago. Hence, fossils range in age from the youngest at the start of the Holocene Epoch to the oldest from the Archaean Eon several billion years old. The observations that certain fossils were associated with certain rock strata led early geologists to recognize a geological timescale in the 19th century. The development of radiometric dating techniques in the early 20th century allowed geologists to determine the numerical or "absolute" age of the various strata and thereby the included fossils.
Like extant organisms, fossils vary in size from microscopic, such as single bacterial cells only one micrometer in diameter, to gigantic, such as dinosaurs and trees many meters long and weighing many tons. A fossil normally preserves only a portion of the deceased organism, usually that portion that was partially mineralized during life, such as the bones and teeth of vertebrates, or the chitinous exoskeletons of invertebrates. Preservation of soft tissues is rare in the fossil record. Fossils may also consist of the marks left behind by the organism while it was alive, such as the footprint or feces (coprolites) of a reptile. These types of fossil are called trace fossils (or ichnofossils), as opposed to body fossils. Finally, past life leaves some markers that cannot be seen but can be detected in the form of biochemical signals; these are known as chemofossils or biomarkers.
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