Anthropogenic Global Warming Introduction

Global warming
From Wikipedia, the free encyclopedia
280px-Instrumental_Temperature_Record.png
Global mean surface temperatures 1856 to 2005

Global warming is the observed increase in the average temperature of the Earth's atmosphere and oceans in recent decades.

The Earth's average near-surface atmospheric temperature rose 0.6 ± 0.2 °Celsius (1.1 ± 0.4 °Fahrenheit) in the 20th century. The prevailing scientific opinion on climate change is that "most of the warming observed over the last 50 years is attributable to human activities"[1].

The increased amounts of carbon dioxide (CO2) and other greenhouse gases (GHGs) are the primary causes of the human-induced component of warming. They are released by the burning of fossil fuels, land clearing and agriculture, etc. and lead to an increase in the greenhouse effect. The first speculation that a greenhouse effect might occur was by the chemist Arrhenius in 1897, although it did not become a topic of popular debate until some 90 years later. [2]

Source
http://en.wikipedia.org/wiki/Global_warming 8.sep, 14:53 GMT+1


Consensus on Climate Change

The list of scientific institutions that have all concluded there is a real danger:
NASA GISS giss.nasa.gov
NOAA noaa.gov
IPCC grida.no
NAS books.nap.edu
SOCC socc.ca
EPA yosemite.epa.gov
UK RS royalsoc.ac.uk
AGU ametsoc.org
NCAR eo.ucar.edu
AMS ametsoc.org
CMOS cmos.ca
National Academics nationalacademies.org
Every major scientific institute dealing with climate, ocean, atmosphere agrees that the evidence says the climate is warming rapidly and the primary cause is human CO2.

See also this joint statement endorsing the conclusions of the IPCC issued by the Australian Academy of Sciences, Royal Flemish Academy of Belgium for Sciences and the Arts, Brazilian Academy of Sciences, Royal Society of Canada, Caribbean Academy of Sciences, Chinese Academy of Sciences, French Academy of Sciences, German Academy of Natural Scientists Leopoldina, Indian National Science Academy, Indonesian Academy of Sciences, Royal Irish Academy, Accademia Nazionale dei Lincei (Italy), Academy of Sciences Malaysia, Academy Council of the Royal Society of New Zealand, Royal Swedish Academy of Sciences, and Royal Society (UK).
royalsociety.org

Source


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