Discussion in 'Earth Science' started by river, Dec 27, 2012.
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Why would that make you go "hmm"? You realize that glaciers need only one thing to form and grow right? That is that the snow fall is greater than the snow melt. The alps has galciers and the rockies at the same latitude do not, the reason is that there is more prescipitation in the alps.
If climate change increases the amount of precipitation in a particular area then the glaciers will grow. In my mind it is not out of the question that an increase in the global temperatures could increase the precipitation in the artic (which is essentially a desert) triggering continental glaciation.
Interesting website. Perhaps global warming is triggering another ice-age? We really don't know enough about it, but time will tell.
I did not look at the website I was justsd answering the question. The web site is pretty useless - clearly just a global warming denier site.
Did you go back and look at the site to reach that conclusion, or is that your conclusion without having looked at the site?
It details scores of glaciers that are advancing around the globe (north and south). It does not pertain to global warming so much as perhaps suggesting that 'warming' might be triggering another ice-age, which has been suggested in many quarters. Time will tell.
It seems that this subject , about the gulf stream , affecting Britain , and therefore a possible iceage coming rather than , in the long run warming , is confusing
Hence the above sites saying different perspectives
Hmmm.., don't know what to think really
And Americans are losing weight! Why are we hearing so much about obesity?
Just plain silly
I know. Imagine, someone taking a few examples that go counter to a prevailing trend and thinking that they are representative . . . .
Anyway back to the subject
Maps of the air currents , worldwide
Now maps of ocean currents
Now what I would have liked to have found was a up to date superimposition of both ocean and air currents
But as of yet not successful
It would be interesting
It doesn't confuse me in the least. Perhaps you could clarify your assertions - what exactly is confusing you here?
So what is keeping warm , the gulf stream ocean currents or air currents ?
I find it hard to imagine though that its the air currents from the rockies which go south then north towards the arctic
How do you see it ?
Yes, when you cherry pick a few months or year and/or a few glaciers, then some glaciers are growing in the short term.
But, when you survey glaciers and use a long time frame, then the vast majority of glaciers are shrinking and the total amount of ice stored in all glaciers is shrinking. So due to cherry-picking, not only does that list have nothing to contribute to the overall global warming trend, it doesn't even correctly describe overall glacier trends.
I have seen this site before and I get their position , I have no problem with this
But the thing is , is that , the climate change is a more complicated dynamic then we initially thought
While the majority of glaciers are melting , it seems , fresh water dilutes the salinity of the north Atlantic , which leads to the slowing down of the gulf stream current , which leads to lower temps. In Britain etc
Yes, Climate change is complicated to understand, but global warming is very easy to understand.
Because the Earth, for decades, has been taking in about 0.2 petawatts of sunlight than it has been emitting to space then by the conservation of energy, the Earth's heat energy content has been going up. Most of this increase in heat content shows up in the oceans, but it also shows up in air temperature records of the lower atmosphere. If you don't know what a petawatt is, 0.2 petawatts is the heat of about one Tsar Bomba every 35 minutes (or about 2 Fat Man demolitions per second) -- over a time frame of decades.
And what is the main culprit? Man's activities which directly increase methane and carbon dioxide in the atmosphere and which secondarily increase water vapor.
Mans activities don't help
But how much CO2 do we take out of the air though
Since plants need CO2 to survive ?
Plants need far less CO[sub]2[/sub] than we currently have to "survive." No one is proposing reducing the CO[sub]2[/sub] of the atmosphere to zero, so thank you again for failing to understand the topic. The topic is: The Earth is warming because we add too much CO[sub]2[/sub] per year and so the Earth gains too much heat per second, so we need to immediately start work on stopping making the problem worse.
Even if CO[sub]2[/sub] is a limiting factor of plant growth in ideal conditions, climate change does not produce the ideal conditions required for plants to flourish. Or
A specific plant’s response to excess CO2 is sensitive to a variety of factors, including but not limited to: age, genetic variations, functional types, time of year, atmospheric composition, competing plants, disease and pest opportunities, moisture content, nutrient availability, temperature, and sunlight availability. The continued increase of CO2 will represent a powerful forcing agent for a wide variety of changes critical to the success of many plants, affecting natural ecosystems and with large implications for global food production. The global increase of CO2 is thus a grand biological experiment, with countless complications that make the net effect of this increase very difficult to predict with any appreciable level of detail.
That said what is your overall point of post #19
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