Climate hoax report author Michael Wehner: “Some of the changes that have occurred are permanent on human time scales"

Climate change: Can we change in time? - San Antonio Express-News

The Arctic, melting rapidly and probably irreversibly, has reached a state that the Vikings would not recognize.
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At current trends, the Earth could warm by four degrees Celsius in 50 years, according to a November World Bank report.
The coolest summer months would be much warmer than today's hottest summer months, the report said.
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“You can't make a thermometer tell you it's hotter than it is,” said Hayhoe, who with her husband, a linguist and West Texas pastor, has written a book on climate change addressed to evangelicals.
...Cold snaps such as the one gripping the East still happen, but less often.
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But “the risk of certain extreme events, such as the 2003 European heat wave, the 2010 Russian heat wave and fires, and the 2011 Texas heat wave and drought has ... doubled or more,” said Michael Wehner, a staff scientist at Lawrence Berkeley National Laboratory and co-author of the climate assessment report. “Some of the changes that have occurred are permanent on human time scales.”
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“We could be at a tipping point where the climate just abruptly warms,” said Mark Jacobsen, director of Stanford University's atmosphere/energy program.