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Climate, Habitat Threaten Wild Coffee Species
An anonymous reader writes "BBC reports that Dr. Aaron Davis of the Royal Botanical Gardens claims 'almost three-quarters of the world's wild coffee species are threatened, as a result of habitat loss and climate change. "Conserving the genetic diversity within this genus has implications for the sustainability of our daily cup, particularly as coffee plantations are highly susceptible to climate change.'"
Any holes are holes in the small details. The big picture is that retaining more heat will make things get hotter. That's about as clear as that the earth is round.
The arguments about the specifics of what exactly is going to happen, but just because somebody got some of that wrong doesn't invalidate the big picture. The weather report may be wrong about that it's going to rain tomorrow, but that doesn't disprove that it rains a lot in London.
Do you realize that "adaption" is a potentially very nasty process?
People talk of "adaption" as if in the case of coastal cities getting flooded people would just grow gills all of a sudden and happily live underwater.
Adaption for humans will also be a messy thing. Suppose coastal cities get flooded. Well, we'll adapt, sure, through massive migrations, massive rebuilds of architecture destroyed by floods, and massive creation of new engineering projects like levees to prevent it. We'll definitely manage. However that won't happen for free, and you're going to end up paying for it, with your taxes, for instance. Some people will pay for it with their life for not getting out of the way soon enough, or will have their enconomic situation majorly screwed up.
Other life no doubt will adapt, but that doesn't mean everything will just get used to the new conditions and otherwise stay the same. It could well mean a species we like dying off and getting replaced with some weed that doesn't mind the new conditions. Over enough time things will rebalance themselves, but not necessarily in a way we will find convenient.
Well, 1 and 2 have been clearly proved - it's clear that CO2 is a very effective greenhouse gas, and that ice cores show that over the past 600,000 years or so the global CO2 concentration has varied, but remained relatively low. It's only since the industrial revolution that CO2 concentration has shot up so sharply, far, far higher than it has ever been over a timescale that makes human existence look tiny.
Knowing that high CO2 concentrations do affect temperatures, even at lab scale and we're changing the concentration in the atmosphere so drastically, do you not think it might be prudent to prevent it if we can, regardless of whether we know *for certain* that it is raising the temperature of the earth?
We have the ability to cut the levels of CO2 we emit, so it seems sensible to do so. Maybe it will all be for nothing and we later find that the earth was naturally warming anyway, but we might just find that it was the right thing to do. If we do nothing, it could be far too late.
I liken this to the widespread use of the "miracle" DDT; sure, it's a great pesticide... until we learned about accumulation in higher predators and the extreme persistence of organochlorines in the environment.
Or the use of CFCs - a fabulous set of molecules, but with a rather unpleasant effect on atmospheric ozone that wasn't discovered until later.
Decent scientists on the whole don't have agendas in the same way that oil companies, coal-burning energy companies and governments do (unless they're paid specifically to have an agenda) - it's pretty easy to spot a scientist with an agenda: just look at the research. There's a reason that peer-reviewed research carries weight - reproducible results, by different people, and even dissenting opinions.
Real scientists don;t mind you checking their data, and there is a lot of it about.
There's also a very large propaganda machine that is left over from the "more doctors smoke camels" days that is very well funded, whose sole job it is to make people with no scientific qualifications question the science - often with outright lies, or by using the terminology of science as a tool. Just look at the way the term "theory" is viewed by the general public in regard to evolution; not really understanding how science defines the term.
On the evidence I have seen, I am in the belief that human industrial processes are warming the earth and that we need to do something about it quickly before the damage is very severe. We're not going to die out, and the world isn't going to kill us all like some $100 million Micheal Bay film, but there will be some significant changes that are going to affect a large proportion of the human population if we don't work on the problem. It will likely be the poorest portion of the population in the least developed nations first of course, which is another reason why I think people just want to distance themselves from it: they just don;t think it will affect their daily life, or think it is too big to fix and thus don;t want to think about it.