Difference between revisions of "Climate Portal"
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The 4th [http://www.ipcc.ch/publications_and_data/publications_and_data_reports.htm IPCC Climate Change Report] published in 2007 states: | The 4th [http://www.ipcc.ch/publications_and_data/publications_and_data_reports.htm IPCC Climate Change Report] published in 2007 states: | ||
− | *Warming of the climate system is unequivocal,as i snow evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice and rising global average sea level | + | *Warming of the climate system is unequivocal,as i snow evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice and rising global average sea level. <ref> IPCC, [http://www.ipcc.ch/pdf/assessment-report/ar4/syr/ar4_syr_spm.pdf Climate Change 2007: Synthesis Report}], accessed 1th September 2009</ref> |
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+ | *Global GHG emissions due to human activities havegrown since pre-industrial times, with an increase of 70% between 1970 and 2004. | ||
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*Most of the observed increase in globally averaged temperatures since the mid-20th century is very likely (confidence level >90%) due to the observed increase in human greenhouse gas concentrations. | *Most of the observed increase in globally averaged temperatures since the mid-20th century is very likely (confidence level >90%) due to the observed increase in human greenhouse gas concentrations. | ||
Revision as of 12:14, 11 September 2009
Welcome to the Climate Portal on Spinprofiles | |||
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- ↑ IPCC, Climate Change 2007: Synthesis Report}, accessed 1th September 2009