RangerJoe
Posts: 13450
Joined: 11/16/2015 From: My Mother, although my Father had some small part. Status: offline
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ORIGINAL: DD696 Glad to see that the prevalent political discussion seems to be decreasing and there is more of a focus on covid-19, but I am absolutely positive that will not last. How a government tackles the Covid-19 pandemic and its fallout (both social and economic) is, inherently, a political decision. IMHO it is impossible to talk about the virus and avoid politics - unless you talk about the pandemic in abstract terms, like statistics (and it would still be impossible to avoid the political angle, like tying a spike to a too hasty reopening after a lockdown). The problem we face is that science isn't partisan. It is years of delusional behaviour that turned scientific ideas into political stances. For example, I do believe in Global Warming and I think that we are running out of time. There: I gave my opinion about a scientific fact. But I'm sure that it will be intended as a political statement (so a big no no here) and possibly mark me as a leftist or whatever. The same is happening now about the measures needed to tackle the pandemic: in some countries politics overtook science - with the dire results we all are seeing. Darwinism in action in its purest form. Global Warming, now there is a cesspool for politics. But if it weren't for global warming, the Earth, or at least most of it, would be covered by about 2 miles of ice. The Earth was previously warmer by about 4 degrees C nearly 2000 years ago . . . Well, there's an assertion that I have never seen before. Got a reliable source for that? Who was taking temperature readings in the days before thermometers? And worldwide stats? Sure, studying geographic evidence in digs can indicate some things about past climates, but accurate enough to say a given temperature range? And if they say ice cores from the Antarctic have the evidence that the air was 4ºC warmer, I will have to ask what ice would have been possible then - the Antarctic is already suffering huge losses of ice at current temperatures. The evidence of warming is not just in current temperature studies of air and ocean, but in behaviour of storms, wildfires and movement of insect/bird/animal/fish populations toward formerly cold regions they could not survive in. And ocean currents that reliably flowed for thousands of years are suddenly ceasing movement as the melting ice of the cold regions stops the northward movement of tropic waters. As one scientist put it "The more energy you add to a system, the more chaotic the events in the system - like a pot of water going from simmer to full boil." That sure seems to fit with observations over my lifetime. Note that none of the above mentions politics, it is just describing what we are seeing/measuring. Politics only gets involved when we have to decide if we should do anything about what is happening. I will not go there if you don't. I should have clarified that what is now England was that much warmer. But: quote:
We are in the current "Holocene" interglacial, which began about 11,500 years ago. As mentioned elsewhere, the middle of the Holocene was warmer than today, at least during summer in the Northern Hemisphere, due to changes in Earth's orbit changing the distribution of solar radiation received on Earth. For similar reasons, the penultimate interglacial (also commonly called the "Eemian") also had a climate different from today. In contrast to the Holocene, we have far fewer records from the Eemian interglacial because it took place about 125,000 years ago. It appears, based on proxy evidence, that global mean annual surface temperatures were warmer than preindustrial by about 1° to 2°C and that high-latitude surface temperature was at least 2°C warmer than present, but for reasons that are well known—the changes in Earth's orbit. Additionally, and similar to the mid-Holocene, warming was not uniform across the globe. https://www.ncdc.noaa.gov/global-warming/penultimate-interglacial-period Edit to include: Mediterranean Sea was 3.6°F hotter during the time of the Roman Empire - the warmest it has been for the past 2,000 years, study shows Roman Empire coincided with warmest period of the last 2,000 years in the Med But the climate later turned colder and likely ended the Empire's golden period Scientists studied amoeba species in marine sediments to reveal climate history https://www.dailymail.co.uk/sciencetech/article-8555871/Mediterranean-Sea-3-6-F-hotter-Roman-Empire-study-claims.html You should also read about Dogger Land. You're talking about the natural variability of climate. That's always been present. Human caused climate change is the issue, and that is comparatively recent. The difficulty with these debates about science, scientific understanding and whatever controversial subject you focus on, is that scientific language is necessarily imprecise when it comes to absolute fact. This is necessary because scientists are always inherently always changing, learning, growing, contradicting and disagreeing with each other. It's of course very easy to politicise the precise language of "theory" and 'prediction" when aiming to discount something that is generally and overwhelming accepted in scientific circles. By the time something is called a "theory" in science it has been examined and torn apart by numerous experts who all looked it it from as many angles as possible to aim to verify if it was really happening, if the mechanisms are as postulated and if the outcomes are really as stated. If you wan to create some doubt for political reasons you can always find some alternate viewpoints from seemingly creditable sources. Those sources can be checked now, thanks to the internet, and when they are it's very interesting how quickly alternate dissenting views on things like human caused climate change fail to stand up to scrutiny. People will believe what they want to believe, still. What has always mystified me is why people try to discount human caused climate change so quickly and vehemently? Why? Environmental controls, alternate energy, and reductions in personnel and industrial carbon emissions can only help us even if you have doubts about their effect, so why the disagreements? Environmental protection particularly is being revoked at an alarming rate in the states while we're all distracted by the pandemic and other political issues. We should be watching more carefully. I will not discuss this anymore here. By pm, maybe. By another thread, maybe. But not here.
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Seek peace but keep your gun handy. I'm not a complete idiot, some parts are missing! “Illegitemus non carborundum est (“Don’t let the bastards grind you down”).” ― Julia Child
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