That's the point, the amount of water in the atmosphere varies greatly, due to precipitation and evaporation. It varies by an amount many time greater than the total amount of CO2 in the atmosphere. If H2O and CO2 are similar in their capacity as greenhouse gases, how is a doubling, or even tripling of CO2 going to have a significant effect on the climate, when the amount of H2O already continually varies by an amount many times more than this?
Yes, the CO2 is constant in its increase. It can't vary due to a lack of precipitation etc.. There are for the water cycle longer frequency variations, such as long periods of sea level and glaciation change.like I say, currently sea levels are rising. I wonder why?In other words, CO2 is the constant, and H2O is the variable. The effects of the variable are far more substantial to the subject at hand, than the effects of the constant. How does any credible science treat the variable as a constant, thereby allowing the constant to be treated as a variable?
Damn! All I've watched was Foxnews. — Hanover
My point here is that it is rational and not at all arbitrary to reject the conclusions of someone you find lacking credibility. What would be irrational would be to fully accept the credibility of the scientists but to simply refuse to accept their inconvenient conclusions. I don't think that is at all what is happening. I think what is really happening is that the general public (myself included) has no idea what sort of experiments have been conducted or what sort of data has been collected, but we are all asked to accept the conclusions because most scientists say it's valid. If tomorrow they report they were wrong, I suspect you'd change your mind. Whether placing trust in the consensus of the experts is reasonable and rational is debatable because polling scientists is a not a scientific act. It's a political one. — Hanover
So, I just read this article here and have had a discussion with a friend who's pretty conservative.
Maybe I'm missing something; but, what are your thoughts about climate change? Please skim the article, thanks. — Question
A second reason for concern is the distribution of impacts among people and across regions. The impacts of climate change will not be distributed equally. Some individuals, sectors, systems, and regions will be less affected—or may even benefit; other individuals, sectors, systems, and regions may suffer significant losses. This pattern of relative benefits or losses is not likely to remain constant over time. It will be different with different magnitudes of climate change. Some regions may have gains only for certain changes in temperature and precipitation and not for others. As a result, some regions that may first see net benefits eventually may face losses as well as the climate continues to warm. — IPCC
It has not been assumed that all the impacts of climate change will be detrimental. Indeed, several studies have looked at possible benefits. Moreover, adaptation is a means of maximizing such gains as well as minimizing potential losses.
However, it must be said that potential gains have not been well documented, in part because of lack of stakeholder concern in such cases and consequent lack of special funding. Examples that have not been fully documented include the possible spread of tropical and subtropical horticulture further poleward (but see some New Zealand studies, on kiwi fruit, for example—Salinger and Kenny, 1995; Hall and McPherson, 1997b). In southern parts of Australia and New Zealand, notably Tasmania, there could be gains for the wine industry, increased comfort indices and thus tourism, and in some scenarios increased water for hydroelectric power generation.
Guest et al. (1999) have documented possible decreases in winter human mortality alongside possible increased summer mortality (see Section 12.7.1), and Howden et al. (1999d) have shown that Australian wheat yields may increase for 1 or 2°C warming, before showing declines at greater warmings (see Section 12.5.3 and Figure 12-3). A similar situation may apply to forestry (see Section 12.5.4). Such studies take account of gains from increased CO2 concentrations. Changes in overseas production and thus in markets in some cases also could lead to greater demand and higher prices for Australian and New Zealand primary products (see Section 12.5.9), but only if such changes do not disrupt world trade in other ways (e.g., lower capacity to pay).
Vulnerability and adaptation to climate change must be considered in the context of the entire ecological and socioeconomic environment in which they will take place. Indeed, adaptations will be viable only if they have net social and economic benefits and are taken up by stakeholders. Adaptations should take account of any negative side effects, which would not only detract from their purpose but might lead to opposition to their implementation (PMSEIC, 1999).
Adaptation is the primary means for maximizing gains and minimizing losses. This is why it is important to include adaptation in impact and vulnerability studies, as well as in policy options. As discussed in Chapter 18, adaptation is necessary to help cope with inevitable climate change, but it has limits; therefore, it would be unwise to rely solely on adaptation to solve the climate change problem.
In some cases adaptation may have co-benefits. For example, reforestation to lower water tables and dryland salinization or to reduce storm runoff may provide additional income and help with mitigation (reduction of GHG emissions). However, other potential adaptations may be unattractive for other reasons (e.g., increased setbacks of development in coastal and riverine environments). These considerations have particular application in Australia and New Zealand. Studies of adaptation to climate change in Australia and New Zealand are still relatively few and far between. They are summarized in the remainder of this section. — IPCC
It isn't rational because it's a logical fallacy to reject an argument based on the perceived authority of those making its case - especially on something as flimsy as political affiliation. Moreover, the consensus is over 97%. What happened to those 40% Republican scientists? Third, it's not just US scientists that say this so the political affiliation discussion only goes so far and really is only a US discussion. — Benkei
So for us, there are no benefits. It's nice though that there's a few more trees and less deaths from cold winters. — Benkei
↪Emptyheady
Wrong. (...) — Benkei
I'm curious how is the Nederlands preparing for climate change? Are we going to see floating cities?
Frankly, I don't see how climate change can be avoided. To what degree is debatable. It's just too much to ask for countries to do something about it when the same countries telling the other one's to do something were, in fact, the main contributors to the current situation. — Question
Credibility of the person is critical when you have a distrust of their data gathering and computations. Obviously, if you were accused of murdering your neighbor, your mother's credibility in asserting you were with her and could not have done it would be suspect (as she does dote on her little Benkei) as would any physical evidence she might present to prove your whereabouts. — Hanover
With regard to political affiliation bias, it goes beyond that to the point of being a liberal worldview consistent with anti-corporate and anti-business interests. Anyway, I'm not arguing as forcefully against climate change as it might appear, but am only pointing out that there is nothing irrational per se in climate change deniers looking skeptically at the backgrounds of those presenting the climate change conclusions.
It also appears that you're inconsistently arguing both sides of this, on the one hand criticizing those who reject arguments based upon the perceived authority of those making the case, but then appealing to authority based upon the perceived authority of those who make the case by suggesting I should be concerned with the number of bona fide scientists who have concluded a particular way.
The OP asks what the positives of climate change might be, and whether the loss of the Netherlands is or isn't a positive is a matter of opinion. — Hanover
That's what lawyers keep telling themselves but it really isn't. Even someone who isn't credible could still be telling the truth. Logically, this doesn't hold any water. — Benkei
"Oh, can't trust what he says because he's a Republican/Democrat". Rational discourse doesn't work that way. And your bare assumption that "a liberal worldview [is] consistent with anti-corporate and anti-business interests" is very telling. It's not even true for most leftists but that requires you to take others that don't agree with you a bit more seriously to absorb. — Benkei
Of course. If Hitler says the blue sky is blue, it's still blue, despite his somewhat sullied reputation. However, in many instances (like climate change), we can't just look up at the sky and confirm the veracity of a statement ourselves, so we are left to rely upon the credibility of the speaker to some extent. It's for that reason, for example, if Charles Manson and his band of merry men and women deny having murdered anyone, yet a group of disinterested witnesses tell us otherwise, we tend to believe the disinterested witnesses, mostly because we understand why Manson may be inclined to lie, but we don't understand why the witnesses would. — Hanover
And we all do this very thing on this forum all the time. For example, once I cited to a website for the proposition that most Palestinians wanted the elimination of Israel, and you ruthlessly ridiculed me over the reference, claiming that I was a patent fool for relying on such a biased poll, damaging my pristine reputation and making me less believable than I previously was. — Hanover
I don't agree though that the polarization we have in US society isn't very real and very deep, which lends itself to a reasonable distrust of anyone who arrives at a conclusion opposed to one side's political position. Using a legal analogy (because that's all I can apparently do), it's reasonable for a jury to have a healthy distrust for both parties because the jury expects that both lawyers are going to present their cases in the best possible light, leaving the jury as the objective body to ferret out the truth. That is, in the legal context, polarization is expected, but an objective body is inserted in to resolve the truth of the issue. I'm not sure, though, that in US society that there's any mainstream objective body waiting to hear both sides and ferret out the truth. The press has openly abdicated it's role as an objective bastion of truth, and the courts are openly questioned by both sides depending upon their ruling. — Hanover
Your examples don't change the fact that it is logically incorrect. In the case of Manson, it shouldn't follow logically from the fact that he's untrustworthy but because we have statements from witnesses that better match the facts. If his statement would match the facts and not contradict other statements, then regardless of his trustworthiness, we would have to acquit him due to reasonable doubt. If the statements of witnesses cannot be corroborated by facts, they should not be used no matter the presumed trustworthiness of the witnesses as opposed to those of Manson. — Benkei
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