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Professor Valentina Zharkova and the Little Ice Age Which Has Already Started

by V. Zharkova, Apr 11, 2024 in FreedomResearch

Astrophysicist Professor Valentina Zharkova explains that instead of CO2, it is the Sun that drives the climate change and because of its decreasing activity we should be ready for a colder period.

“CO2 is not a bad gas,” says Valentina Zharkova, a professor at the Northumbria University in Newcastle, UK. On the contrary, she points out, every garden centre uses it in its greenhouses to make plants lush and green. “We actually have a CO2 deficit in the world, and it’s three to four times less than the plants would like,” she notes, adding that the proportion of CO2 in the atmosphere has been at much higher levels throughout our planet’s history than it is now.

In fact, over the last 140 million years, the amount of CO2 in the atmosphere has been steadily decreasing and only now slightly starting to rise. It is currently around 420 parts per million (ppm), or 0.042%. 140 million years ago, it was estimated at 2,500 ppm (0.25%), or about six times higher. And it also meant a greener and more biodiverse world. If CO2 were to fall below 150 ppm (0.015%), it would already mean the extinction of vegetation and all other life. We came close to that during the last glacial maximum when it was at 182 ppm (0.018%).

Zharkova says that the fact that CO2 levels in the atmosphere are now increasing is a good thing. “We don’t need to remove CO2 because we would actually need more of it. It’s food for plants to produce oxygen for us. The people who say CO2 is bad are obviously not very well educated at university or wherever they studied. Only uneducated people can come up with such absurd talk that CO2 should be removed from the air,” says Zharkova.

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better to know...?, climate-debate

Don’t Be Alarmed About Unusually Warm Temperatures

by A. Epstein, Appt 13, 2024 in ClimateChangeDispatch

Myth: Recent, unusually warm temperatures show that fossil fuels are making our climate more and more dangerous.

Truth: Even with recent temperatures, which are a temporary anomaly, not the new normal, cold is a bigger problem than heat and fossil fuels keep us safer from both. [emphasis, links added]

Leading outlets are portraying the recent streak of warmer-than-expected months as ominous and deadly, and offering anti-fossil-fuel policies as a solution.

In reality, cold is a far bigger problem than heat—and anti-fossil-fuel policies will make us more endangered by both.

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climate-debate

Climate of the Past, Present and Future. A scientific debate, 2nd ed.

by J. Vinos, Sep 2022 in ResearchGate

Abstract
This book is an unorthodox ground-breaking scientific study on natural climate change and its contribution to ongoing multi-centennial global warming. The book critically reviews the effect of the following on climate: – Milankovitch cycles – abrupt glacial (Dansgaard-Oeschger) events – Holocene climate variability – the 1500-year cycle – solar activity – volcanic eruptions – greenhouse gases – energy transport Applying the scientific method to available evidence reveals that some of these phenomena are profoundly misunderstood by most researchers. Milankovitch cycles are tied to orbital obliquity, not to orbital precessional summer insolation; glacial megatides might have triggered abrupt Dansgaard-Oeschger events; and tides are likely responsible for the related 1500-year climate cycle. Climate change affects volcanic eruptions more than the opposite; and secular variations in solar activity are more important to climate change during the Holocene than greenhouse gases. In this book, we see how important natural climate change has been on human societies of the past. It also produces new climate projections for the 21st century and when the next glaciation could happen. What emerges from this study of natural climate change is a central theme: Variations in the transport of energy from the tropics to the poles have been neglected as a cause of climate change, and solar activity variations affect climate by modulating this transport. The author tells us: –Transporting more energy from a greenhouse gas-rich region, the tropics, to a greenhouse gas-poor region, the poles, increases the amount of energy lost at the top of the atmosphere. The effect resembles a reduction in the greenhouse gas content.– The book presents the Winter-Gatekeeper Hypothesis on how variations in solar activity regulate Earth’s energy transport and in so doing affect atmospheric circulation, the rotation of the planet, and the El Niño/Southern Oscillation. This book is oriented toward students and academics in the climate sciences and climate anthropology and should also appeal to readers interested in the science of natural climate change. The repercussions of Climate of the Past, Present and Future are far reaching. By uncovering a strong natural climate change component, it provides a novel view of anthropogenic climate change, fossil energy use, and our future climate; a view quite different from the IPCC’s gloomy projections.
better to know...?, climate-debate

Three More New Temperature Reconstructions Document A Warmer Medieval Period

by K. Richard, Apr 11, 2024 in NoTricksZone

he North Atlantic, the Pacific Northwest (USA), and northern Finland were all warmer than today between 1000 and 2000 years ago.

Today’s (2000 CE) July air temperatures in the Azores – archipelago islands in the middle North Atlantic, ~1400 km west of Portugal – are visually shown to average about 10 to 11°C in a newly published reconstruction (Raposeiro et al., 2024).

This average air temperature is about 1 to 2°C warmer than this location’s Little Ice Age climate, or the coldest period (~9.1°C from 1750-1800) of the last 2000 years. However, the Medieval Climate Anomaly (MCA) had temperatures reaching into the 13-15°C range, which is 3-4°C warmer than modern.

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A temperature reconstruction from a lake in the USA’s Pacific Northwest (Baig, 2024) indicates glacial temperatures were only 1.0 to 1.6°C colder than the modern temperature, 12.2°C. Temperatures reached 13.7°C, or 1.5°C warmer than today, ~2500 years ago, and then fluctuated between 12.6 and 12.2°C from 1900 years ago until today, a period encompassing both the Medieval Warm Period and Little Ice Age.

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Another lake sediment temperature reconstruction using branched glycerol dialkyl glycerol tetraethers (brGDGTs) from northern Finland (Otiniano et al., 2024) suggests the modern temperature (represented as the blue diamond) is among the coldest of the last ~8000 years. Temperatures were much warmer than modern about 1200 to 1500 years ago, and throughout the period from 7000 to 3000 years ago.