Untold Story of Climate’s Holocene Gift to Humanity

by V. Jayaraj, Jul 14, 2023 in CO2Coalition


News reports of summer heatwaves often perversely misrepresent a modern climate favorable to human flourishing in order to fearmonger the false narrative of catastrophic global warming.

The geological epoch of the Holocene, which roughly corresponds to the last 11,700 years, is a time of warmth that has been vital in fostering the diversity and adaptability of life on our planet – not a curse as popularly portrayed. The relevance of the Holocene interglacial period to humanity’s survival cannot be overstated.

The development and maintenance of life on Earth have been greatly aided by the Holocene – sometimes called the age of man.

Nearly 12 millennia back, the Holocene ended glacial stages known as the Wisconsin in North America and Weichselian in Europe, which had begun between 75,000 and 100,00 years ago. As previously ice-covered regions became accessible for colonization, plant and animal species expanded their geographical range and the Earth’s overall biodiversity.

This period saw the rise of ancient civilizations in Mesopotamia, Egypt, the Indus Valley and China, each of which made contributions to the advancement of human culture and numbers. There were a mere 170 million people on earth at the end of the first century, about half the population of the U.S. in 2023. Today the world has more than 8 billion people.

 

Continuer la lecture de Untold Story of Climate’s Holocene Gift to Humanity

Climate Self-Regulation: Is The Earth Cooling Itself?

by E. Gardey, Jul 14, 2023 in ClimateChangeDispatch


Climate change activists are dogmatic. Greenhouse gases released by human activity are warming the Earth by trapping heat in the atmosphere.

Thus, doom and gloom and civilizational collapse await us if we don’t decrease the number of cows, gas-guzzling cars, and factories.

But is it really that straightforward? [emphasis, links added]

In a Wall Street Journal column published Sunday, Andy Kessler proposes that Earth’s atmosphere is actually able to regulate itself such that temperatures remain relatively constant despite changes in greenhouse gases or the radiation of the sun.

The mechanism for doing so, Kessler believes, is a negative feedback loop. This is a natural process by which the negative effects of a reaction cause that reaction to slow down or stop.

The hypothesis on climate self-regulation, which is termed the Iris Effect, was first proposed by atmospheric physicist Richard Lindzen in 2001. It postulates that cirrus clouds in the tropics dissipate in reaction to rising temperatures. 

Additional radiation can then escape from Earth’s atmosphere, causing a cooling effect. Kessler calls this a “safety valve.

In an interview with Kessler, Lindzen, a professor emeritus at the Massachusetts Institute of Technology said, “This more than offsets the effect of greenhouse gases.