When diggers find a wooly cc. with a gut full of freshly chewed munchies, we will know his demise didn't happen during a slow global cooling phase.
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Originally posted by chuckChuck View PostThe Colombia ice fields are still shrinking and have shrunk 1.5 kilometres (10m per year on average) since 1843. I don't think this qualifies as evidence of an equal chance of global warming or an imminent ice age. Wouldn't you expect glaciers to be at least stable or growing if we are heading into another ice age?
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Originally posted by sumdumguy View PostAnd how would we know exactly how big the Colombia Ice Fields were in 1843?
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CO2 as seen by Dr Patrick Moore:
Over the past 150 million years, carbon dioxide had been drawn down steadily (by plants) from about 3,000 parts per million to about 280 parts per million before the Industrial Revolution. If this trend continued, the carbon dioxide level would have become too low to support life on Earth. Human fossil fuel use and clearing land for crops have boosted carbon dioxide from its lowest level in the history of the Earth back to 400 parts per million today.
At 400 parts per million, all our food crops, forests, and natural ecosystems are still on a starvation diet for carbon dioxide. The optimum level of carbon dioxide for plant growth, given enough water and nutrients, is about 1,500 parts per million, nearly four times higher than today. Greenhouse growers inject carbon-dioxide to increase yields. Farms and forests will produce more if carbon-dioxide keeps rising.
We have no proof increased carbon dioxide is responsible for the earth’s slight warming over the past 300 years. There has been no significant warming for 18 years while we have emitted 25 per cent of all the carbon dioxide ever emitted. Carbon dioxide is vital for life on Earth and plants would like more of it. Which should we emphasize to our children?
<a href="https://www.heartland.org/news-opinion/news/why-i-am-a-climate-change-skeptic">Complete article here</a>
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Liberal logic:
1. The world might go back into an ice age if we didn't have human interference.
2. Human interference counter acts global cooling.
3. Let's stop this right now and plunge the planet into an ice age...
4. Let's start crying about all the people dying because a cold planet can't grow food or have enough energy to support 10 billion humans and all the Flora and fauna we have.
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Originally posted by Klause View PostLiberal logic:
1. The world might go back into an ice age if we didn't have human interference.
2. Human interference counter acts global cooling.
3. Let's stop this right now and plunge the planet into an ice age...
4. Let's start crying about all the people dying because a cold planet can't grow food or have enough energy to support 10 billion humans and all the Flora and fauna we have.
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Originally posted by Klause View PostLiberal logic:
1. The world might go back into an ice age if we didn't have human interference.
2. Human interference counter acts global cooling.
3. Let's stop this right now and plunge the planet into an ice age...
4. Let's start crying about all the people dying because a cold planet can't grow food or have enough energy to support 10 billion humans and all the Flora and fauna we have.
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Originally posted by grassfarmer View PostScotsman David Douglas came across it in 1827 so not unknown in 1843.
Please ignore the site this came from, as I know you would dismiss it, but if you follow the links and sources within, there is lots of information about Glacier advance and retreat during and since the little ice age. Brian Fagan is very much in the AGW camp, and he is referenced several times in this blog.
https://notalotofpeopleknowthat.wordpress.com/2015/01/25/glacial-advance-during-the-little-ice-age/
From the end of the blog post:
But even if they were not, it is clear that much of the 20thC rise in sea levels that we have seen is no more than a return to the conditions that existed 1000 years ago, before glaciers worldwide began to expand.
We do know that much of the glacial retreat since the 19thC actually took place before the middle of the 20thC, as the photo at the top illustrates.
There is no written law of nature that says glaciers should be the size they were in Victorian times. Indeed, there is no reason why they should not return to their state 4000 years ago.
As HH Lamb writes in “Climate, History and The Modern World†(pp 146).
“Most – and perhaps all – of the glaciers present today in the United States Rockies south of the Canadian border are believed to have formed since 1500 BC.â€
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Originally posted by Sheepwheat View PostMy point is, who was tracking it? What was the extent in 1680?
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