It is difficult to find the truth buried beneath an Antarctica’s ice pile-size of climate hysteria, but I keep looking. And usually the truth has to be covered with a veneer of “of course there is awful human-caused global warming” to get published at all. Everything is warmer than it has ever been right, including the oceans. Of course that isn’t true, isn’t even close to true. And it isn’t just multiple times millions of years ago that it was warmer; it is within the current interglacial period. This study looks at the past 600 years record of temperatures in the Fiji atolls. According to data obtained by looking at coral growth (just want to point out that all these “proxy” records for temperatures have extremely wide uncertainty ranges) in the years 1380 to 1550 the ocean was as warm as it is now. But the authors of course claim that current temperatures are warmer, due of course to human activities. I love how these scientists are willing to ignore the data they come up with to hew to the party line on climate hysteria. (Coral Study)
And here is another example of trying to fit inconvenient data into the hysteric’s narrative. About 1,250,000 years ago our planet shifted from glacial cycles that lasted about 41,000 years to those lasting about 100,000 years. Now according to the climate hysterics, everything is controlled by CO2 levels. The authors examined what factors appeared to be associated with the shift to different cycles. Orbital dynamics, which drive a lot of climate through varying levels and intensity of sunshine, do not appear to be the cause of this shift. What did happen is that the Antarctica ice sheet grew rapidly about 2 million years ago, which affected ocean and atmospheric circulation and atmosphere moisture levels, and oh, CO2 levels, leading to a Northern Hemisphere glaciation episode about 1.25 million years ago, coinciding with the shift in glacial cycle timing. Buried in the middle of the article are these nuggets–CO2 declined from about 2.3 million years ago to 2 million years ago, then were flat until 900,000 years ago, and then declined. So if you look at the timing of those levels compared to the growth of ice sheets, there is either no relationship or the CO2 levels delined as the world cooled. Hysterics are extremely unhappy about suggestions that cooling lowers CO2 rather than the other way around, but it is logical–as the world cools there is less vegetation and lower sources of CO2. (Science Article)
What we really should be worried about is that we are nearing the end of the most inter-ice age cycle, and severe cold is likely to have a pretty sudden onset in the future.
You are so right about that. An Ice Age can come on in 100 years or less and last 10,000. If one comes and you aren’t at the equator, you definitely want to live near a nuclear reactor. This is what bugs me about “geoengineering” to reduce warming. We know so little and could start or accelerate an Ice Age.