Låt mig börja dagen med att citera valda delar av ett uttalande av Hendrik Tennekes, en högt meriterad holländsk meteorolog. Hans uttalande publicerades igår på Roger Pielke Sr. blogg Climate Science. Läs gärna hela inlägget på Climate Science. Jag tycker att Tennekes står för en mycket sund och realistisk syn på klimatförändringar.
“The so-called scientific basis of the climate problem is within my professional competence as a meteorologist. It is my professional opinion that there is no evidence at all for catastrophic global warming. It is likely that global temperatures will rise a little, much as IPCC predicts, but there is a growing body of evidence that the errant behavior of the Sun may cause some cooling in the foreseeable future.”
“The political dichotomy about climate change is fueled by gross exaggerations and simplifications on both sides of the fence. There is no evidence for a catastrophic sea level rise or an irreversible loss of Greenland’s ice cap. Other human interferences with the climate system are ignored or dismissed. Political interest in the causes of local and regional climate change seems to be minimal, though local and regional climates may change considerably under human impact, even if the globally averaged temperature remains unchanged.”
“We should keep in mind that local and regional climates respond not only to greenhouse gases, but primarily to changing land-use patterns. Civilization has a long history of dealing with unintended regional climate change caused by large-scale deforestation. The present deforestation in the Amazon basin and in Indonesia threatens to repeat the many mistakes made in the past. The incessant emphasis on CO2 and its effects on globally averaged temperatures leads many to ignore the fact that changes in the distribution of precipitation are far more threatening to agriculture and biosphere than any slight temperature changes. In precisely that part of the problem, however, the predictive capabilities of global climate science are practically nonexistent.”
“Fortunately, the time rate of climate change is slow compared to the rapid evolution of our institutions and societies. There is sufficient time for adaptation. We should monitor the situation both globally and locally, but up to now global climate change does not cause severe problems requiring immediate emission reductions. Successive IPCC reports have presented no scientific basis for dire warnings concerning climate collapse. Local and regional problems with shorter time scales deserve priority. They can be managed professionally, just as the Dutch seem to do.”
PS. För säkerhets skull ger jag er även en länk till vad DeSmogBlog skriver om Hendrik Tennekes. 🙂