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"Dramatic Decline" Warning For Plants and Animals
An anonymous reader writes "Worldwide levels of the chief greenhouse gas that causes global warming have hit a milestone, reaching an amount never before encountered by humans, federal scientists said. Carbon dioxide was measured at 400 parts per million at the oldest monitoring station in Hawaii, which sets the global benchmark. More than half of plants and a third of animal species are likely to see their living space halved by 2080 if current trends continue."
Isn't it about rising temps and sea levels? THAT'S what's supposed to reduce habitat. Not just CO2 levels by itself. Just sayin'.
I'm surprised about how Slashdot seems so overwhelmingly anti-science on this issue. Only a few posts in and I've already won ""idiotic anti-global warming arguments bingo".
I'm pretty sure some deniers conclusively proved that this is all bunk in the last article. The problem is that 1) the scientists didn't know that the station is on a volcano, 2) they did know it was on a volcano and they still put the CO2 detector inside the volcano right above the liquid-hot magma, 3) there are no ice cores on Hawaii, 4) ice cores are completely unreliable for anything anyway, 5) the CO2 monitored is only applicable to Hawaii, more specifically a few meters around the detector and does not register global CO2 levels, 6) China still exists thereby making all readings void, 7) these readings don't matter, 8) these readings are all faulty because I don't know how they get them, 9) these readings align well with other CO2 stations across the globe, and we all know that repeatable and reliable numbers are a sign of confirmation bias not accuracy, 10) these numbers are void because of Climategate probably, 11) these numbers are valid but don't matter because I don't know why, 12) plants like CO2 therefore any changes in the environment are offset by wonderful new foliage, and 13) these numbers are void because Al Gore still exists.
Why are we still even discussing this? It has been demonstratively proven false.
Seems we're suffering from a bit of Climate Change Fatigue... which suggests that the less than 1% of credible scientists who doubt AGW have managed to sow enough seeds of dramatic dissent for the rest of us to lose interest.
Or perhaps, it is something a little simpler in the human psyche. Whilst we bemoan politicians who have no more future vision than the end of their current term, it seems that we too are particularly short-sighted about the future of this planet. I suspect that the majority of us look little further than how we're going to satisfy the physical aspects of Maslow's Heirarchy of needs.
When our life expectancies are extended to 1000 years (or more), and we face the very real prospect of living on the planet we are currently terraforming, we may take a slightly different view. Somehow, I doubt it. Most of the people alive today will live to see an increase of 4-6 degrees C... and yet, we're far more interested in gun control and the Kardashians.
I feel sad for our children (and their children) when I think about the world they will inherit from us.
"so I dont see how more co2 will harm plants". Yes you do, you just wanted to do a quick denial thing. From the article:
"An international team of researchers looked at the impacts of rising temperatures on nearly 50,000 common species of plants and animals."
"They looked at both temperature and rainfall records for the habitats that these species now live in and mapped the areas that would remain suitable for them under a number of different climate change scenarios."
"The scientists projected that if no significant efforts were made to limit greenhouse gas emissions, 2100 global temperatures would be 4C above pre-industrial levels."
"In this model, some 34% of animal species and 57% of plants would lose more than half of their current habitat ranges. "
So the models very much in line with the UN one at 4 degrees, it will expand the dessert along the equators and push species north into a smaller area presumably. But hey, if you deny it, it won't happen right?
IIRC, science says algae are (to use your expression) the planet's lungs, not trees.
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Well I thought it was commonly known that people are cutting and burning the rain forest, so let's not blame that on CO2. If climates move further toward the poles due to "warming" species may be able to migrate, but that leaves one to wonder what happens in the areas that are warmest already. Many think those areas turn to desert, but we know that doesn't have to be the case: Reversing desertification In fact we've been causing it, just not with CO2. And if you don't like the sea level rising, you should look at a map that shows bathymety - the continental shelf areas used to be above water, but the level has been rising since the glaciers started melting. There really is no reason to think we're at the high water mark just because people decided to build cities on the present-day coast.
Besides, I think it would be a good idea to get out of this ice age before another glaciation comes along. Yes, we're still in "the ice age" look it up, we're near the end of an interglacial period. I'd rather give warming a shot than let the ice come back.
Allan Savory gave a really good Ted Talk a few months ago backing up that claim with a substantial amount of science and experience. I hope you're not too lazy to watch all twenty-two minutes of it, but if you are, let me give you a quick synopsis. Dr. Savory states that the majority of our global warming issues are due to desertification (the destruction of grasslands and their transformation into desert areas), and he claims that 50% of the CO2 in the atmosphere can be removed simply by ceasing unsustainable agriculture practices and converting these lands into grasslands for grazing.
"The US probably has to annex Canada."
Speaking as a Canadian, on behalf of Canadians, you can go fuck yourself.
This is what counts as evidence for you. Did you ever find some counter evidence? Almost certainly not, right?
For those who are interested, you can read about Beck 2008 here, here, and here.
For the full effect, make sure you actually read through Beck 2008.
Proof that you only need a few bits of junk our there, and that's enough for politics.
Like all pain, suffering is a signal that something isn't right
Back in 1975 we were supposed to be freezing by now. Anyone remember that?
As in some scientists asked the question, studied it, and rejected the theory after 5 or so years. There was never consensus, but the story was too good not to run in major newspapers.
Do YOU remember it?
More Big Scare tactics. These articles belong in the Science Fiction category so far. We don't know what's going to happen, we've never been there before, but we're assured that it's going to be bad and only by taking and transferring hundreds of billions of our tax dollars to someone else who is more Progressive than ourselves can we save us all.
The only big scare tactics I see are those who preach that the economy was crash if we tax pollution. It is baloney of course. There is empirical data that shows that the effect on the economy is * negligible*. The effect on the Koch brother's political influence will be non-negligible, but that's crony capitalism for you.
Like all pain, suffering is a signal that something isn't right
"Life adapts. That's what it does."
Actually the fossil record suggests otherwise, if the amount of change is too abrupt. In that case most higher life forms go extinct because they are too dependent upon specific lower forms of life that often can not adapt. Most organisms have very specific environmental requirements. Go outside of those physiological limits and they die. Humans aren't much different in many respects. We do a lot of things, but seldom do we really get too far out of our physiological comfort zone. A world that in 80-100 years has temperatures of 130-140 degrees F in the shade for weeks on end will be a whole experience.
Keep in mind that this time its totally different, because of the rate at which CO2 is rising. Its going up more than 26 times faster than during the Paleocene-Eocene Thermal maximum, which changed the forests of what is now northern Wyoming from redwoods to palm trees in a couple of thousand years. It will be hard to imagine many organisms surviving that kind of change over the course of a few hundred, much less most of their pollinators.
"Do you think Canadians and Russians live in fear of global warming?"
They should. The vast bulk of the warming that will be seen is occurring in the Arctic and generally speaking even Russians and Canadians need to eat. With food crops under threat, they may well find themselves stressed as well. Some 56,000 Russians died in the heat wave in 2010. Some 40,000-50,000 Europeans died from a similar heat wave in 2003. If the Lake El’gygytgyn results are a direct indication that the global climate sensitivity is 8 degrees Celsius which it appears to, rather than what people have been indirectly inferring and using in their climate models, then its pretty clear that we can expect many more to die as we now move into the Arctic amplification phase of global warming.
As for the high latitude North providing more arable land, don't count on it for several reasons. 1) Arctic soils are very poor, 2) few commercial plants can tolerate the long winters so most crops that require more than one year to produce, such as fruit trees won't be among them, 3) just because the Arctic is warming doesn't mean that it may not yet see many days with freezing temperatures, so most plants adapted to more southern latitudes simply won't be able to adapt to growing conditions which are interrupted by severe frost in an unpredictable way, 4) it may be almost impossible to take pollinators with them given the different wind and percipitation/abruptly changing temperature regimes. Keep in mind many plants used for human consumption, such as corn, rice, coffee are tropical or tropical highland species, 5) many others such as wheat are highly susceptible to rusts and fungi and will likely fare poorly as there is too much moisture in the atmosphere such as in early spring, and 6) simply because you have high latitude does not mean that abundant, year around sources of freshwater will be uniformly available throughout the entire landscape.
Obviously, a lot depends on how fast the change.