Global warming may proceed faster and be more severe than previously predicted according to research about to be published in the scientific journal “Nature”. Reductions in airborne particle pollution, or aerosols, as air quality is improved, will amplify climate change by reducing the cooling effect due to aerosols and also by increasing the amount of carbon dioxide that remains in the atmosphere. Uncertainty about the magnitude of past and present cooling, however, means that we cannot be certain about the strength of future warming, which may exceed previous estimates.
Prof. Meinrat O. Andreae of the Max Planck Institute for Chemistry in Germany, Dr. Chris Jones from the Met Offices Hadley Centre for Climate Prediction and Research, and Prof. Peter Cox from the Centre for Ecology and Hydrology have studied the consequences of the cooling effect from man-made aerosols (tiny airborne particles) on present and future climate, and on the uptake of carbon dioxide CO2 by the land biosphere. Such aerosols have reduced the amount of the suns radiation that reaches the Earths surface, and thereby have offset some of the warming impact of greenhouse gases - such as carbon dioxide - which have warmed the global climate during the 20th century. However, their harmful effects on air quality and human health have led to clean air legislation requiring us to clean up our emissions.
This necessary reduction in aerosols will result in a reduction of their cooling effect and hence will accelerate global warming. Dr. Jones likens this to driving a car whilst pressing both the accelerator and the brake, “Now we are taking our foot off the brake, but we dont know how fast we will go. Because we dont know exactly how strong the aerosol cooling has been, we do not know how strong the greenhouse warming will be”.
Barnaby Smith | alfa
Waste in the water – New purification techniques for healthier aquatic ecosystems
24.07.2018 | Eberhard Karls Universität Tübingen
Plenty of habitat for bears in Europe
24.07.2018 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig
There are currently great hopes for solid-state batteries. They contain no liquid parts that could leak or catch fire. For this reason, they do not require cooling and are considered to be much safer, more reliable, and longer lasting than traditional lithium-ion batteries. Jülich scientists have now introduced a new concept that allows currents up to ten times greater during charging and discharging than previously described in the literature. The improvement was achieved by a “clever” choice of materials with a focus on consistently good compatibility. All components were made from phosphate compounds, which are well matched both chemically and mechanically.
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New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference
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Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
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.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
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.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
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