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Global warming is here, human-caused and probably already dangerous — and it's increasingly likely that the heating trend could be irreversible, a draft of a new international science report says.
Borenstein excited: 'UN report uses word irreversible 36 times: 'the risk of abrupt & irreversible change increases as the magnitude of the warming increases'
Via Hockey Schtick website: 'Global sea levels have been naturally rising for ~20,000 years and have decelerated over the past 8,000 years, decelerated over the 20th century, decelerated 31% since 2002 and decelerated 44% since 2004 to less than 7 inches per century.
There is no evidence of an acceleration of sea level rise, and therefore no evidence of any effect of mankind on sea levels.
Sea level rise is primarily a local phenomenon related to land subsidence, not CO2 levels. Therefore, areas like Miami Florida which is built on soft limestone have higher rates of relative sea level rise, but this has absolutely nothing to do with man-made CO2.'
As climate researcher Paul "Chip" Knappenberger pointed out in a tweet this week, two new studies provide a double-whammy to climate alarm because 1) man-made aerosols have been found to have minimal cooling effects and 2) at least 50% of recent global warming is not anthropogenic. Therefore, the possible role of CO2 in causing global warming has to be far less than previously assumed, and the "climate sensitivity" to doubled CO2 levels therefore very low. In addition, a third paper published this week demonstrates that radiative imbalance from large volcanic eruptions is re-established within ~2 years, not 20+ years as claimed by James Hansen as his excuse for the 18 year "pause" in global warming. This means that volcanic aerosols have minimal long-term cooling effects and therefore, the warming effect of CO2 has to be much lower than assumed in Hansen's climate models and thus climate sensitivity estimates must be loweredeven further.
'A new paper out of the United Kingdom ties increases in flooding incidences to population and economic growth and not global warming.'
'Rather than keeping pace with modestly warming temperatures, relative humidity is declining. This decline has been ongoing, without interruption, for more than 60 years.'