Search results for dioxide

Earth Sciences Jun 13, 2024

Ancient ocean slowdown warns of future climate chaos

When it comes to the ocean's response to global warming, we're not in entirely uncharted waters. A UC Riverside study shows that episodes of extreme heat in Earth's past caused the exchange of waters from the surface to the ...

Earth Sciences Jun 13, 2024

Uncovering the prolonged cooling events of the Holocene

Climate changes, but not always for the same reason. Today's rapid climate change is due entirely to man. The Holocene—the last 12,000 years—has been seen as having a stable climate, with a lack of chaos that allowed ...

Earth Sciences Jun 12, 2024

Atmospheric sulfur dioxide levels hit historic high in Scotland following Icelandic volcanic eruption

Edinburgh, no stranger to an occasional haze, experienced an unprecedented atmospheric event on 31 May, unlike any seen over the past 30 years. While sea haar from the North Sea often blankets Scotland's capital, the haze ...

Earth Sciences Jun 12, 2024

NASA analysis confirms a year of monthly temperature records

May 2024 was the warmest May on the books, marking a full year of record-high monthly temperatures, NASA scientists found. Average global temperatures for the past 12 months hit record highs for each respective month—an ...

Nanophysics Jun 12, 2024

Transparent organic–inorganic hybrid photoresist enables precision machining of optical microstructures

Researchers at Beijing University of Chemical Technology (BUCT) and BOE Technology Group Co., Ltd. (BOE) have developed a novel type of transparent organic–inorganic hybrid photoresist with highly tunable refractive index.

Analytical Chemistry Jun 12, 2024

A 'liquid battery' advance—strategies for electrocatalytic hydrogenation

As California transitions rapidly to renewable fuels, it needs new technologies that can store power for the electric grid. Solar power drops at night and declines in winter. Wind power ebbs and flows. As a result, the state ...

Environment Jun 12, 2024

Nitrous oxide emissions are accelerating with growing demand for fertilizer and meat

Food's role in climate change has emerged as one of the defining challenges of our time. The journey of a steak, fruit or salad from the vast expanses of agricultural lands to the plates on our tables leaves a significant ...

Environment Jun 12, 2024

Researchers report dropping atmosphere levels of the last ozone-layer-damaging chemicals to be phased out

Since the 1985 discovery of a hole in the ozone layer countries have agreed and amended treaties to aid its recovery. The most notable of these is the Montreal protocol on substances that deplete the ozone layer, which is ...

Nanophysics Jun 12, 2024

New method integrates quantum dots with metasurfaces for enhanced luminescence

A study published in Nano Letters demonstrates the use of quantum dots to create metasurfaces, enabling two objects to exist in the same space.

Earth Sciences Jun 11, 2024

Study finds human-caused nitrous oxide emissions grew 40% from 1980–2020, greatly accelerating climate change

Emissions of nitrous oxide—a greenhouse gas more potent than carbon dioxide or methane—continued unabated between 1980 and 2020, a year when more than 10-million metric tons were released into the atmosphere primarily ...

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