Q & A: What does being energy independent really mean?
The rapid rise in gas prices following Russia's invasion of Ukraine has renewed calls for the U.S. to become "energy independent."
Mar 29, 2022
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The rapid rise in gas prices following Russia's invasion of Ukraine has renewed calls for the U.S. to become "energy independent."
Mar 29, 2022
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Food waste is a growing problem in Canada and many other parts of the world—and it is only expected to get worse in the coming years. The world population is expected to grow to 9.7 billion by 2050, alongside global food ...
Mar 28, 2022
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Microalgae have been used by the Chinese for medicinal and nutritional purposes for thousands of years in the belief they could cure almost any health condition. The idea that microalgae have extraordinary healing powers ...
Mar 21, 2022
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Belgium on Friday delayed by a decade a plan to scrap nuclear energy in 2025, spooked by the huge rise in energy prices due to the Russian invasion of Ukraine.
Mar 19, 2022
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The war in Ukraine has caused oil prices to surge to the highest level since 2008, with gas prices in some areas of California creeping up to $6 per gallon. Rising prices have led renewable energy advocates like Tesla CEO ...
Mar 16, 2022
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The Russia-Ukraine crisis is already a human catastrophe. And it could also prove disastrous for climate action by slowing the global energy transition.
Mar 15, 2022
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A vast array of solar panels floats on the shimmering waters of a reservoir in northeast Thailand, symbolising the kingdom's drive towards clean energy as it seeks carbon neutrality by 2050.
Mar 10, 2022
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Researchers have made tiny 'skyscrapers' for communities of bacteria, helping them to generate electricity from just sunlight and water.
Mar 7, 2022
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Europe's ferry industry has set sail for an emissions-free future. It's leading the eco-friendly revolution with electric and hydrogen-powered boats that are destined to make urban transport more sustainable.
Mar 1, 2022
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Four Rocky Mountain states will cooperate on developing ways to make the most abundant element in the universe, hydrogen, more available and useful as clean-burning fuel for cars, trucks and trains, the states' governors ...
Feb 24, 2022
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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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