By P Gosselin from the NoTricksZone
Climate tipping points are much more fantasy than science
Austrian AUF 1 has posted a video interview with prominent German geologist and Sahara expert Dr. Stefan Kröpelin,
Sahara has been shrinking over the past decades. Image: NASA
Dr. Kröpelin is an award-wining geologist and climate researcher at the University of Cologne and specializes in studying the eastern Sahara desert and its climatic history. He’s been active out in the field there for more than 40 years.
In the Auf 1 interview, Dr. Kröpelin contradicts the alarmist claims of growing deserts and rapidly approaching climate tipping points. He says that already in the late 1980s rains had begun spreading into northern Sudan and have since indeed developed into a trend. Since then, rains have increased and vegetation has spread northwards. “The desert is shrinking; it is not growing.”
Kröpelin confirms that when the last ice age ended some 12,000 years ago, the eastern Sahara turned green with vegetation, teemed with wildlife and had numerous bodies of water 5000 – 10,000 years ago (more here).
Later in the interview Kröpelin explains how the eastern Sahara climate was reconstructed using a vast multitude of sediment cores and the proxy data they yielded. According to the German geology expert: “The most important studies that we conducted all show that after the ice age, when global temperatures rose, the Sahara greened”…”the monsoon rains increased, the ground water rose”. This all led to vegetation and wildlife taking hold over thousands of year.
Then over the past few thousands of years, the region dried out. It didn’t happen all of a sudden like climate models suggest.