Monthly Archives: September 2017

Climate Letter #1013

There is a big story today about a new and close study of the world’s tropical forests.  Collectively they are losing more carbon to the atmosphere than the amount they are gaining, which reverses a previous common understanding. There are … Continue reading

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Climate Letter #1012

One last word about Round Two— The Round Two concept is a terrible idea, best forgotten.  Here’s why.  The potential for causing havoc is real enough, as cited in the literature, and is a legitimate cause for concern, but the … Continue reading

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Climate Letter #1011

A comparison of Round One and Round Two— This particular terminology, along with some associated imagery, just popped into my head while composing yesterday’s Climate Letter.  It seemed like an apt thing to say at the moment.  Later on I … Continue reading

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Climate Letter #1010

The existing idea of a carbon budget is not properly conceived, and should be replaced. That is the conclusion I have come to in recent days.  The most obvious reason is because the budget is so highly restricted to human … Continue reading

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Climate Letter #1009

What would the world be like with CO2 at 500 ppm? One way to get an answer, which I think makes the most sense, is to check out everything scientists have learned about Earth’s climate history.  There is data available … Continue reading

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Climate Letter #1008

Something interesting that we learn from Milankovitch cycles— Human civilization as we know it developed over the last 10,000 years, constituting an interglacial period known as the Holocene.  This has been a time of mild and stable climate conditions, generally … Continue reading

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Climate Letter #1007

Getting to know and understand the Milankovitch cycles can be easy! It is also important, if you happen to have an interest in climate history.  For me, the study of climate history is a critical key to understanding what the … Continue reading

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Climate Letter #1006

What does it really mean to have today’s CO2 level of 405-410 ppm? It means we would like to somehow find out what levels were like far back in the past, long before any direct measurements could be undertaken.  We … Continue reading

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Climate Letter #1005

Weather Map findings:  Go to http://cci-reanalyzer.org/wx/DailySummary/#T2_max  (T-max)  There is a new story, posted below, about the devastating effects of prolonged heat stress on human beings.  This is a good place to find out who is in trouble at any one … Continue reading

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Climate Letter #1004

About the climate change story— Again, I am amazed at how the relevant information has recently exploded.  Happily, for those interested, the number and quality of sources available on the web has kept up with it, ready to be put … Continue reading

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