A new study using a computer climate model to simulate the last 50 years of climate changes, projects warming over the next 50 years regardless of whether or not nations curb their greenhouse gas emissions soon. If no emission reductions are made and they continue to increase at the current rate, global temperatures may increase by 1-2 degrees Celsius [2-4 degrees Fahrenheit]. But if the growth rate of carbon dioxide does not exceed its current rate and if the growth of true air pollutants (substances that are harmful to human health) is reversed, temperatures may rise by only 0.75 degrees Celsius [1.4 degrees Fahrenheit].
"Some continued global warming will occur, probably about 0.5 degrees Celsius [0.9 degrees Fahrenheit] even if the greenhouse gases in the air do not increase further, but the warming could be much less than the worst case scenarios," says James E. Hansen, lead researcher on the study at NASAs Goddard Institute for Space Studies (GISS), in New York, New York. The research was a collaborative effort among 19 institutions, including seven universities, federal agencies, private industry and other NASA centers, and was funded by NASA. The results appear this month in the Journal of Geophysical Research-Atmospheres, published by the American Geophysical Union.
The GISS SI2000 climate model provided a convincing demonstration that global temperature change of the past half-century was mainly a response to climate forcing agents, or imposed perturbations of the Earths energy balance, according to the researchers. This was especially true of human-made forcings, such as carbon dioxide and methane, which trap the Earths heat radiation as a blanket traps body heat; thus causing warming.
Harvey Leifert | EurekAlert!
Researchers discover dust plays prominent role in nutrients of mountain forest ecoystems
29.03.2017 | University of Wyoming
More than 100 years of flooding and erosion in 1 event
28.03.2017 | Geological Society of America
The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.
To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
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