During the most recent period in Earths past with a climate warmer than today, the tropical Pacific was in a stable state of El Niño-like conditions, according to a new study by researchers at the University of California, Santa Cruz.
Whether this represents a likely scenario for the future, given the current rise in global temperatures, is uncertain. Nevertheless, the study has important implications for scientists trying to understand the global climate system and how it might respond to global warming, the researchers said.
El Niño is a temporary disruption of normal circulation patterns in the ocean and atmosphere in the tropical Pacific, with important consequences for weather around the globe. Because the system always returns to the normal circulation patterns after an El Niño event, many scientists have considered these patterns to be the only state in which the system can remain stable over long periods of time. The new study, published this week in the journal Science, shows that there is another stable state for the ocean-atmosphere system that is dramatically different from todays.
Tim Stephens | EurekAlert!
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A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.
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There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?
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