Global warming as one of the phases of the oscillatory changes in the global temperature of the Earth have read, which is below, and rolled the idea that in batch processes of the Earth is one of the most extensive and powerful influence on the cyclic change is global warming - global cooling.
If so, then the astronomical clock arrived. But they have the strongest influence on the entire army of the biological clock.
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The study of fossil mollusks age of 3.5 million years has allowed researchers from the University of California at Los Angeles (USA) and their colleagues to reconstruct the ancient climate record, which contains allusions to the results of long-term impact of the current concentration of carbon dioxide in the atmosphere.
Using new geochemical techniques it was found that summer temperatures in the Arctic in the Early Pleistocene (4-3,5 million years ago) to exceed the current 10-15? C. Apparently, in those days, the northern polar cap in summer wears out the whole.
At the time, the atmospheric carbon dioxide level was 400 parts per million, and it lasted for thousands of years. If emissions are not reduced, in 50-100 years we will have the same situation.
Ellesmere Island in the early Pleistocene (Figure George Rinaldino Teichmann / Canadian Museum of Nature).
The poles of the first to respond to global warming and heat up faster than other regions, especially the Arctic. Melted, they have a huge impact on the entire planet, as ice and snow reflect solar radiation, no more, the ability of the ocean and land to absorb heat increases. In the early Pleistocene, the average surface temperature of the Earth was at 1-2,5?
C higher than now.
The remains of shellfish, which was based on the research found in the fjord Strathcona Ellesmere Island - the northernmost point in Canada.
Usually, the climate record reconstructed from ice cores, but they give a depth of about 800 thousand years. During this period, the atmospheric carbon dioxide concentration should not exceed 280-300 ppm. There is another way - to measure the content of oxygen isotopes in the remains of shellfish and plants that lived in the same time in the same place, but these findings are very rare.
So we had to develop a new method to learn the ancient temperature to only one calcium carbonate contained in the shells, and the rare isotopes of carbon and oxygen.
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Unstoppable Solar Cycles,great
Beautiful orrery(solar system model) avaiable in : http://www.orrerystore.com/orrery_sal... .This video sets aside doomsday alarmism and political axe-grinding to look at the science behind the history of climate change on earth. An examination of early Viking colonies on Greenland, wiped out by a period of global cooling, enables scientists to draw important conclusions about our current phase in the climate cycle. What we learn in this program is that earth's climate is always changing - from The Middle Ages and the "Little Ice Age" to the modern warming that has been going on since 1850 (well before human-generated CO2 began increasing in our atmosphere).Dr. Willie Soon Ph.D., an Astrophysicist from the Harvard-Smithsonian Center for Astrophysics and Dr. David Legates Ph.D., a Climatologist from the Center from Climate Research at the University of Delaware provide an easy-to-follow review of current climate science, which suggests that the sun's irregular patterns and other natural forces are the major sources of climate change.100,000-Year Climate Pattern Linked To Sun's Magnetic Cycles (Dartmouth College)http://www.dartmouth.edu/~news/releas... Cycles in Earth's Upper Atmosphere Linked to Solar Wind Disturbances (University of Colorado at Boulder)http://www.colorado.edu/news/r/32abc3... In Sun's Intensity Tied To Recurrent Droughts In Maya Region (University of Florida)http://news.ufl.edu/2001/05/17/maya/C... Rays Linked To Global Warming (University of New York)http://www.agu.org/sci_soc/prrl/prrl0... For Sun-climate Link Reported By UMaine Scientists (University of Maine)http://www.eurekalert.org/pub_release... From Sun's Far Side May Affect Space Weather Of Inner Planets (Swedish Institute of Space Physics)http://www.europlanet-eu.org/demo/ind... Solar Activity May Bring United States More Gray Days (NASA)http://www.gsfc.nasa.gov/topstory/200... In Sun's Corona Linked To Atmospheric Temperature Changes On Earth (Long Island University)http://www.sciencedaily.com/releases/... Finds Sun-Climate Connection in Old Nile Records (NASA)http://www.nasa.gov/vision/earth/look... Study Finds Increasing Solar Trend That Can Change Climate (NASA)http://www.nasa.gov/vision/universe/s... Analysis Shows Earth's Lower Stratosphere In Synch With Solar Cycle (National Center for Atmospheric Research)http://www.ucar.edu/communications/ne... Climate, Ecosystems Driven By Cycles Of Changing Sunlight (University Of Illinois)http://news.illinois.edu/scitips/03/0... Determine Biological And Ecosystem Changes In Polar Regions Linked To Solar Variability (Lawrence Livermore National Laboratory)https://publicaffairs.llnl.gov/news/n... Cycle Linked to Global Climate (National Science Foundation)http://www.nsf.gov/news/news_summ.jsp... Direct Role In Global Warming May Be Underestimated, Duke Physicists Report (Duke University)http://news.duke.edu/2005/09/sunwarm.... Magnetic Field May Impact Weather And Climate: Sun Cycle Can Predict Rainfall Fluctuations (University of New England, Australia)http://www.sciencedaily.com/releases/... Sun's Chilly Impact On Earth (NASA)http://www.gsfc.nasa.gov/topstory/200... Sun Is More Active Now Than Over The Last 8000 Years (Max Planck Institute for Solar System Research)http://www.mpg.de/english/illustratio......
