Human caused Global Warming proof published.
Scientists confirm by direct observation Carbon Dioxide’s Green House Effect with 11 years study conducted in both Alaska and Oklahoma. The scientists were able to link rising CO2 levels with human activity—primarily the burning of fossil fuels. The observed measurements confirm theoretical model predictions of the greenhouse effect due to human activity.
The results of the study were published online in Nature (Science Journal) Feb 25th, 2015. The paper “Observational Determination of Surface Radiative Forcing by CO2 from 2000 to 2010,” was released by scientists from Lawrence Berkeley National Laboratory; University of California, Berkeley; University of Wisconsin-Madison; Atmospheric and Environmental Research Inc.; and Pacific Northwest National Laboratory. Authors of the paper (D. R. Feldman, Bill Collins, Jonathan Gero, Margaret S. Torn, Eli Mlawer & Timothy Shippert provided the evidence. The 11 years of data was primarily sourced from the U.S. Department of Energy’s Atmospheric Radiation Measurement Climate Research Facility, known as ARM.
The data from 3300 measurements from Alaska and 8300 measurements from Oklahoma confirms that rising carbon dioxide levels can be traced to human-caused fossil fuel emissions and helps confirm that climate models are accurately representing carbon dioxide’s impacts to climate.
Video from Berkeley Lab showing carbon dioxide’s increasing greenhouse effect at two locations on the Earth’s surface in Alaska and Oklahoma over an 11 year period.
CO2 measurements were made using Atmospheric Emitted Radiance Interferometer equipment that compared atmospheric CO2 concentrations with surface radiative forcing due to C02 at two different locations (North Slope of Alaska and Oklahoma). The measurements confirm that the Earth absorbed more energy from solar radiation than was emitted as heat back to space.
The lead Author of the Nature paper Daniel Feldman, a scientist in Berkeley Lab’s Earth Sciences Division says ”Numerous studies show rising atmospheric CO2 concentrations, but our study provides the critical link between those concentrations and the addition of energy to the system, or the greenhouse effect”.
The instruments were able to isolate the contribution of CO2 from other factors such as clouds, water vapor and seasonal changes caused by the influence of photosynthesis.
The scientists were able to link increasing CO2 from 2000 to 2010 with attributed radiative forcing to fossil fuel emissions and fires. Said another way this 11 years of in the field measurements and data provides scientific proof that CO2 released from fossil fuels does cause an increase in greenhouse effect and thus global warming.
Reference from Nature
D. R. Feldman, W. D. Collins, P. J. Gero, M. S. Torn, E. J. Mlawer, T. R. Shippert. Observational determination of surface radiative forcing by CO2 from 2000 to 2010. Nature, 2015; DOI: 10.1038/nature14240
EV of the Year Judge, independent green journalist, photographer, author and sustainability activist that has published over 1000 articles. Mr Burridge’s travels have taken him to over 30 countries and 300+ major cities. He is originally from the USA, but has been residing in Australia for the last seven years. Connect to Ken Burridge on: Twitter, facebook, Google+, Linked in or website