As the planet warms, many parts of the Earth system are undergoing large-scale changes. Ice sheets are shrinking, sea levels are rising and coral reefs are dying off.
Earth Sciences
12 hours ago
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Global warming is often cited as having a negative impact on snow and ice melt in cold regions, yet new research published in The Cryosphere has suggested that extreme snowfall events may be a feature of some locations at ...
Liquid metals could be the long-awaited solution to "greening" the chemical industry, according to researchers who tested a new technique they hope can replace energy-intensive chemical engineering processes harking back ...
Nanomaterials
Nov 9, 2023
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Melting glaciers, unbearable heat and space junk: a month before crunch climate talks in the United Arab Emirates, a UN report published Wednesday warns about irreversible impacts to the planet without drastic changes to ...
Environment
Oct 25, 2023
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Scientists measured microplastic concentrations in the highly productive Barents Sea and suggest that ocean circulation, ice melt, tourism, inadequate waste management, shipping and fishing are all likely contributors.
Earth Sciences
Oct 17, 2023
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Less pollution settling into snow should help cut the decline of snowpack in the Northern Hemisphere later this century. Though the snowpack will still diminish due to rising temperatures, the outlook is less dire when the ...
Earth Sciences
Oct 12, 2023
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Indian rescuers are searching for over 100 people missing in a flash flood caused by a glacial lake bursting its banks, a risk scientists warn is increasing with climate change.
Environment
Oct 6, 2023
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Glacier loss is a pressing concern worldwide, with ice melt impacting freshwater supplies, sea-level rise and ocean circulation. Often, global glacier models are employed to better understand the extent of this threat, such ...
Environment
Sep 28, 2023
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A new generation of refractory alloys with excellent high-temperature performance is urgently demanded for aero-engines, gas turbines, and nuclear power plants. As the service temperature of their hot-ends is reaching 1800 ...
Materials Science
Sep 26, 2023
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As we seek more efficient utilization of waste thermal energy, use of "phase change materials (PCMs)" is a good option. PCMs have a large latent heat capacity and the ability to store-and-release heat as they change from ...
Analytical Chemistry
Sep 18, 2023
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Melting, or fusion, is a physical process that results in the phase change of a substance from a solid to a liquid. The internal energy of a substance is increased, typically by the application of heat or pressure, resulting in a rise of its temperature to the melting point, at which the rigid ordering of molecular entities in the solid breaks down to a less-ordered state and the solid liquefies. An object that has melted completely is molten. Substances in the molten state generally have reduced viscosity with elevated temperature; an exception to this maxim is the element sulfur, whose viscosity increases with higher temperatures in its molten state.
Some organic compounds melt through mesophases, states of partial order between solid and liquid.
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