New study identifies human contribution to atmosphere circulation changes
Illustrating the Walker circulation. Changes under warming are exaggerated for emphasis. Illustration credit: Gabriel A. Vecchi, NOAA Geophysical Fluid Dynamics Laboratory.
A new study published in this weeks issue of Nature is the first to show that human activity is altering the circulation of the tropical atmosphere and ocean through global warming.
Scientists widely agree that the climate has warmed over the past century and that human activities, such as burning fossil fuels, have significantly contributed to this global warming. This study tapped historical records that date back to the mid-19th century as well as simple theory and state-of-the-art computer model simulations to detect and attribute these climate changes. The conclusion was that the principal loop of winds that drives climate and ocean behavior across the tropical Pacific is slowing down and causing the climate to drift towards a more El Niño-like state. This could have important implications for the frequency and intensity of future El Niño events and biological productivity in tropical oceans.
Ivy F. Kupec | EurekAlert!
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Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
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Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
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Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
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