They calculate with confidence that CO2 has been responsible for over half the enhanced greenhouse effect. The choice of authors aims for a range of views, expertise and geographical representation, ensuring representation of experts from developing and developed countries and countries with economies in transition.
A chapter typically has two "coordinating lead authors", ten to fifteen "lead authors", and a somewhat larger number of "contributing authors". They predict that under a "business as usual" BAU scenario, global mean temperature will increase by about 0.
Not been subject to line by line discussion and agreement, but presents a comprehensive, objective, and balanced view of the subject matter.
Unsourced material may be challenged and removed. Endorsed section by section and not line by line. Material has been subjected to detailed, line by line discussion and agreement.
There are several types of endorsement which documents receive: Working Groups accept their reports. Globally, s very likely warmest decade in instrumental record ". Contributing authors prepare text, graphs or data for inclusion by the lead authors.
Greenhouse gas concentrations have continued to increase Anthropogenic aerosols tend to produce negative radiative forcings Climate has changed over the past century air temperature has increased by between 0.
Some of these comments have been supportive,  while others have been critical. The major conclusion was that research since did "not affect our fundamental understanding of the science of the greenhouse effect and either confirm or do not justify alteration of the major conclusions of the first IPCC scientific assessment".
Review comments are in an open archive for at least five years. Task Force Reports are accepted by the Panel.
It is split into four parts: Synthesis Report Summary for Policymakers is approved by Panel. Panel adopts Overview Chapters of Methodology Reports.The Intergovernmental Panel on Climate Change (IPCC) is a scientific and intergovernmental body under the auspices of the United Nations, set up at the request of member governments, dedicated to the task of providing the world with an objective, scientific view of climate change and its political and economic impacts.
It was first .Download