More Bad News for Caribbean Coral Reefs

[conachair]

Originally Posted by Davey1000

IMHO the recent weather troubles are merely the effect of the jet-streams not moving into their normal places. For example in Great Britain the prevailing jet-stream ought to move northwards during the summer dumping all the bad weather to beyond the north of Scotland. In 2012 this did not happen and in the south west during spring 2012 there was heavy and constant rain every day for three months. Apart from the odd lull of perhaps half an hour there was constant precipitation.

Though the jet stream oddness might well be connected with the arctic being so warm - Evidence linking Arctic amplification to extreme weather in mid-latitudes - Francis - 2012 - Geophysical Research Letters - Wiley Online Library
The temperature differential being less could be messing things up, doubt if any scientist would put their hands up and say "look - see!" being such a cautious bunch but what isn't really in doubt is that the difference in temp between the arctic and the tropics has been a couple of deg C less (?) these past few years.

[boatman61]

Here's someone who knows the 'Ultimate Expert'....
Pam Ayres - They Should Have Asked My Husband.mpg - YouTube

[tropicalescape]

Originally Posted by GordMay

Interesting, but not quite accurate.

➥ http://face.env.duke.edu/PDF/es187-06.pdf

➥ 17 Years of Discovery in Duke Forest Comes to a Close — Nicholas School of the Environment at Duke University

It had been a while since I read this,77% is far from 1000% ,I knew it was not accurate but I couldnt find the study..I stand corrected,thanks..

[jackdale]

Increased CO2 levels also result in increased pest issues.

Elevated levels of atmospheric carbon dioxide (CO2), a consequence of anthropogenic global change, can profoundly affect the interactions between crop plants and insect pests and may promote yet another form of global change: the rapid establishment of invasive species. Elevated CO2 increased the susceptibility of soybean plants grown under field conditions to the invasive Japanese beetle (Popillia japonica) and to a variant of western corn rootworm (Diabrotica virgifera virgifera) resistant to crop rotation by down-regulating gene expression related to defense signaling [lipoxygenase 7 (lox7), lipoxygenase 8 (lox8), and 1-aminocyclopropane-1-carboxylate synthase (acc-s)]. The down-regulation of these genes, in turn, reduced the production of cysteine proteinase inhibitors (CystPIs), which are specific deterrents to coleopteran herbivores. Beetle herbivory increased CystPI activity to a greater degree in plants grown under ambient than under elevated CO2. Gut cysteine proteinase activity was higher in beetles consuming foliage of soybeans grown under elevated CO2 than in beetles consuming soybeans grown in ambient CO2, consistent with enhanced growth and development of these beetles on plants grown in elevated CO2. These findings suggest that predicted increases in soybean productivity under projected elevated CO2 levels may be reduced by increased susceptibility to invasive crop pests.

Anthropogenic increase in carbon dioxide compromises plant defense against invasive insects

[Tar34]

Originally Posted by jackdale

Increased CO2 levels also result in increased pest issues.



Anthropogenic increase in carbon dioxide compromises plant defense against invasive insects

Elevated levels of atmospheric carbon dioxide (CO2), a consequence of anthropogenic global change,(Unproven).... can profoundly affect the interactions between crop plants and insect pests and may promote yet another form of global change: the rapid establishment of invasive species. Elevated CO2 increased the susceptibility of soybean plants grown under field conditions to the invasive Japanese beetle (Popillia japonica) and to a variant of western corn rootworm (Diabrotica virgifera virgifera) resistant to crop rotation by down-regulating gene expression related to defense signaling [lipoxygenase 7 (lox7), lipoxygenase 8 (lox8), and 1-aminocyclopropane-1-carboxylate synthase (acc-s)]. The down-regulation of these genes, in turn, reduced the production of cysteine proteinase inhibitors (CystPIs), which are specific deterrents to coleopteran herbivores. Beetle herbivory increased CystPI activity to a greater degree in plants grown under ambient than under elevated CO2. Gut cysteine proteinase activity was higher in beetles consuming foliage of soybeans grown under elevated CO2 than in beetles consuming soybeans grown in ambient CO2, consistent with enhanced growth and development of these beetles on plants grown in elevated CO2. These findings suggest that predicted increases in soybean productivity under projected elevated CO2 levels may be reduced by increased susceptibility to invasive crop pests.

[jackdale]

Tar - scientists are always conservative in presenting their findings.

[Tar34]

Originally Posted by jackdale

Tar - scientists are always conservative in presenting their findings.

Yes always the voice of reason and conservative projections.

[jackdale]

Originally Posted by Tar34

Yes always the voice of reason and conservative projections.

Checking 20 years worth of projections shows that the Intergovernmental Panel on Climate Change has consistently underestimated the pace and impacts of global warming

Climate Science Predictions Prove Too Conservative: Scientific American

[Mr B]

The millions of wild animals that we have slaughtered over the last couple of hundred years,

Wildebeast, Elephants, Bison, Deer, That did roam in their millions, should put us in credit against car emissions, Or make us break even, Methane and CO2

Just a thought,

[jackdale]

Originally Posted by Mr B

The millions of wild animals that we have slaughtered over the last couple of hundred years,

Wildebeast, Elephants, Bison, Deer, That did roam in their millions, should put us in credit against car emissions, Or make us break even, Methane and CO2

Just a thought,

Uh no.

Speed some time with methane release from permafrost melting.

I really do not have the time or inclination to do your homework for you.

[DeepFrz]

Originally Posted by Mr B View Post
The millions of wild animals that we have slaughtered over the last couple of hundred years,

Wildebeast, Elephants, Bison, Deer, That did roam in their millions, should put us in credit against car emissions, Or make us break even, Methane and CO2

Just a thought,

Oops, didn't work. Perhaps we could try another experiment and reduce the human population by a few billion.

[sailorboy1]

Originally Posted by DeepFrz

Oops, didn't work. Perhaps we could try another experiment and reduce the human population by a few billion.

is this going to be a volunteer program or do the rest of us get to chose?

[goboatingnow]

Oops, didn't work. Perhaps we could try another experiment and reduce the human population by a few billion.

we did try that several times in the 20th century, seems wasn't to useful either.

It came to me when I tried to classify your species and I realized that you're not actually mammals. Every mammal on this planet instinctively develops a natural equilibrium with the surrounding environment but you humans do not. You move to an area and you multiply and multiply until every natural resource is consumed and the only way you can survive is to spread to another area. There is another organism on this planet that follows the same pattern. Do you know what it is? A virus. Human beings are a disease, a cancer of this planet.

[Tar34]

Originally Posted by goboatingnow

we did try that several times in the 20th century, seems wasn't to useful either.

Home page from this link.........human privilege

By producing and maintaining humans as the seldom acknowledged and "unmarked norm" against which all Others are measured (Fawcett, 2000; Kirby, 1994), humans, like white men, and perhaps, to although often to a lesser degree, white women, have come to enjoy immense privilege at the expense of non-human, and non-white Others.........
human privilege

University of Regina

[rlh1246]

Since Al Gore invented internet and discovered that the planet has been going through global warming a lot of folks who should know better have jumped on the band wagon. There are several questions involved in global warming:

1. Is it real?
2. Are the oceans rising as a result of it?
3. What is the major cause of global warming?
4. How long has global warming been going on?
5. Can we humans do anything about global warming?

There are plenty of other questions, but these are enough to look at here. The first two questions are easy to answer and that answer is a resounding Yes!

Question #3 is a bit more complicated and we don't have a clear answer for it, but the fact of it is that global warming more properly termed interglacial episode has happened numerous times over the past millions of years and the only difference between this one and those that preceded it is that we human pigeon-holers are here to attempt to place blame for the occurrence.

In answer of Question #4: global warming or the interglacial episode has been going on for approximately 15,000 years and during that time the oceans have risen around 200 feet. They are continuing to rise around one-foot per century.

Is there anything that man can do about global warming, probably nothing that is very substantial since it began long before we got out of the Stone Age and will run its course. What we can do is to reduce waste of all resources especially those that are non-renewable. Oil and Gas, water, minerals to name a few. They are all far too valuable to our society to waste at the rate that we are expending them.

The basis for the formation of oil and gas occurred during a period when humans would have been complaining that it was far too hot and humid and too much vegetation. Conditions for its formation won't occur again in the near or distant foreseeable future and it takes millions of years to concentrate it in the quantities that we would need.

The over pumping of ground water has an unacknowledged problem that is not normally recognized and that is the collapse of reservoirs. Most ground water was trapped when surrounding terrain was eroded into dry, marine or non-marine basins. Water filled the spaces between sediment particles and held them open. When a reservoir is over pumped the spaces collapse as the water is withdrawn and even if there is sufficient meteoric water (rain) to resupply the reservoir, there is no longer any space for the water and it runs off causing erosion or evaporates and is lost. Phoenix and other desert communities are in a very bad position due to over pumping of deeper and deeper reservoirs and they will never have any more water than what they have right now today.

Global warming is change over time and man has very little, if any, control over any of the factors relating to it. My question is once "global warming" is past and we go back into an ice age, what and who are they going to blame it on?