Would this weakening "help" retain Greenland and Arctic ice?
Gulf Stream weakening now 99% certain, and ramifications will be global
51–56 of 56 posts
Re: Gulf Stream weakening now 99% certain, and ramifications will be global
#52I mean given what we know about the Sahara and its wet and dry periods, it doesn’t seem at all illogical that ocean currents should start and stop to match. I think it’s important to understand that the earth is deeply dynamic and constantly changing, and has incredible variation in often cyclical patterns over hundreds, thousands and tens of thousands of years. While we know human caused elements are accelerating tr…
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Re: Gulf Stream weakening now 99% certain, and ramifications will be global
#53Earlier quoted context omitted.
Every human built thing (and almost every built thing is human built) can be 'unbuilt' by humans, often quickly and trivially. See door locks. The only sure way to protect yourself is to be part of a society - something our hunter gatherer forebears quickly latched onto.
Society is the first thing to break down in a disaster situation though.
Evidence?
Re: Gulf Stream weakening now 99% certain, and ramifications will be global
#54"has slowed by 4% over the past four decades"
Wouldn't it be the case that the measurement of almost any aspect of nature will show a 4% change over 40 years and so can produce similar headlines? is going up / going down. This has ramifications for the globe.
Re: Gulf Stream weakening now 99% certain, and ramifications will be global
#55Earlier quoted context omitted.
- Accelerated ice melt - The Gulf Stream brings warm water near Greenland and Antarctica. Its weakening could disrupt this process, potentially speeding up ice sheet melt. I don't understand this one. Why would the reduction in warm water brought to Greenland cause the ice sheets to melt more?
had to think about this a bit. It doesn't directly affect it, but it adds to the problem of global warming by increasing the temp gradient between the higher elevation interior and the cooler, lower elevation coast. This can cause more wind and increased evaporation, and, effectively, "pull" the damp air away from the central ice sheets. But that's just me speculating. It definitely seems counterintuitive.
Overall all the effects either make the ice caps colder or warmer. If it's colder that helps with melting ice caps. If it's warmer than that makes the north more pleasant.
Re: Gulf Stream weakening now 99% certain, and ramifications will be global
#56Anyone know a good web site or publication that shows potential outcomes from all these different changes to global climate and where will be the best places to live in the future? Should i be looking to buy plots of property it Alaska?
The Day After Tomorrow by Roland Emmerich is one of the postulated scenario. It was very entertaining though a bit over the top. Part 2 sequel is very meh.