lgl
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Sea level / temp
Is there an explanation why the sea level kept rising between 1945-75 while the global temperature dropped?On 'Sea level in the Arctic is falling'--Sea level is a surprisingly complicated thing posted 2 years, 8 months ago 11 Responses
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Re
Not so quick Ed,
1000 years ago it was about as warm as now, on Greenland, but it was much warmer 3500 and 7000 years ago, I have collected some curves here:
http://virakkraft.com/greenland_curves.html
But remember this is not the global temp, I haven't found a proxy for the global temp with sufficient resolution that far back in time.
I agree with you that warming is certainly not the greatest danger of our time, our activities that reduce the earth's ability to biological production is far worse, but unfortunately at present the idea of the curse of CO2 seems to take all the space in the minds of media and politics.On 'Global warming is part of a natural cycle'--This idea is one short step above appealing to magic posted 2 years, 8 months ago 39 ResponsesClick here to view comment in original post
Water
Ed,
That steam would be nothing compared to the 500*10e15 kg evaporation from the oceans and surface every year.
And how did Greenland get it's name? Actually it used to be greener. The viking Eirik Raude gave it that name to allure people to come there around year 1000, and they did. 3000 "colonialists" lived there until the little iceage (from yr 1400) when climate change made farming impossible. Eirik Raude would have loved todays return of a warmer climate, so would the Mammoths that are now thawing out of the permafrost in Siberia...On 'Global warming is part of a natural cycle'--This idea is one short step above appealing to magic posted 2 years, 8 months ago 39 ResponsesClick here to view comment in original post
re try here
Thanks,
Amazing, a max every 200 years, 800,600,400 and 200 years ago, so there should be one about right now and another one in about 200 years, and some of us should be able to live long enough to see the drop in between. Or is it just my over active imagination again ...lglOn 'Global warming is part of a natural cycle'--This idea is one short step above appealing to magic posted 2 years, 10 months ago 39 Responses
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re what forcing?
I have offered no forcing and I dont have to. Like i don't need to know about the earth's orbit around the sun nor an over active imagination to assume it will get warmer in the spring. The cycles are not identical and they don't have to. The 3500 years cycle is the result of several other shorter cycles and then the max and min may slide.
The trend is from greenland simply because I have not found any curve for the global temp over that timespan that detailed, I'd be grateful if you could point to one. It would surprise me if the extremes do not coincide.lglOn 'Global warming is part of a natural cycle'--This idea is one short step above appealing to magic posted 2 years, 10 months ago 39 Responses