Dr Theobald wrote:
Since those nominally in charge are all off for a jolly (at our expense) and will attempt but fail to change attitudes to the so-called global warming issues I thought the following may offer some light relief
Dr T (a sincere global warming sceptic - predicting that the post will "raise a few issues")
Is that a Calvin and Hobbes cartoon by Bill Watterson? I loved Calvin and Hobbes and wish that he hadn't retired.
Quark wrote:The silly thing is when people start telling us how the world will be utterly ruined by global warming. It won't. Earth's looked far worse for wear at points in its history than anything we've done to it, and, like Dotsie says, temperature goes up and down all the time. Humans are just notoriously fragile.
You're right; global warming won't ruin the world, but it might wipe us out. The biggest problem that we would face from a warming climate would be problems with our water supply, which we're already running into. Frankly, I'm more worried about pollution (plastics, farm run-off, toxic chemicals, etc...).
poohcarrot wrote:There are three kinds of people in the world.
swreader wrote:no single nation and most likely even all the nations of the world can afford to deal with the dislocations caused by climate change should things continue pretty much as they are for more than 50 to 100 years. Those nations that convent to green economies will be in the best position, but that will not help unless all the nations of the world co-operate in finding ways to stop global warming. The Australian government has now officially recognized that the effects of global warming they have felt in the past few years (drought especially) are permanent. They are now trying to find ways to live with the consequences.
As all of you can tell, this is a subject I am rather passionate about--and equally very pessimistic.
You've hit the nail on the head. We're going to have trouble living
with the consequences. Thanks to industrialized farming and modern medicine, our population has exploded and we've really pushed the limit on how many people we can support on the available farmland. At the same time over-farming, urban sprall, and loss of potable water due to pollution/drought/melting glaciers has reduced the amount of farmland available.
The consequences? Die-offs due to disease, famine, & natural disasters.
chris.ph wrote:have you seen pictures of the cities at the height of the industrial revolution, then we were pumping out a damn site more noxious crap than we are now. the tawe in swansea was probably worse than the ankh, the copper works and tin works pumped all their mecury and arsenic straight into the rivers not including all the crap that was coming down the valley from the coal mines. now you can salmon fish in the river so wee are trying tp improve our enviroment
This might be true in Europe & North America, but while we cut back, it's really ramping up in Asia and South America. We're not really improving anything, we're just sweeping it under the rug.
Dr Theobald wrote:One has to wonder whether the huge forces that cause the geoplate movements that lead to earthquakes and volcanoes are also a significant factor in the drivers for climatic change? Personally I think that is likely.
Personally, I think it is unquestionable. Active volcanos pump out huge amounts of greenhouse gases and, when they blow, dust & ash. When continents move they create moutains, which make glaciers, change air currents, river courses, and push land higher which can turn a forest into a desert.
Dr Theobald wrote:Remember that MOST of this earth is a turbulent inner mass of molten rock and movements / currents within that molten mass can have some quite devastating effects on the thin crust that we occupy. For example, consider the effects should the magnetic pole move AGAIN - it most definitely has moved in the past as can easily be shown by geologists. In that the new magnetic north would relocate to the spin axis that could mean (as an example) the current Sahara being where we now have the north pole - and pro-rata reallocation of continents to totally different climatic regions. Not a happy thought, especially sice it is thought, note - thought, that the past movements of the poles have occurred over very short times.
Does the axis of the Earth's core affect the axis of the Earth? I know that they are currently something like 18 degrees off of each other (which is why we have a "magnetic north" and a "true north"). I know that the core can turn over pretty quickly but, in these circumstances, it's hard for me to see how this would affect the Earth's axis much.
Interesting thread! And a belated welcome to you Dr. Theobald.
Now, like I said; I think the biggest threat facing us is food & water. This is most easily seen in Asia. Together, China and India have about 40% of the world's population (some 2.5 billion people) and have traditionally been enemies. Roughly half of both of these countries are supplied water from the Himilaian glaciers, which are shrinking.
At the same time, other parts of these countries (such as Northern China) have been experiencing severe droughts (in China's case, at least, partially due to over-farming). In order to combat the drought-stricken areas, China is building a huge pipeline (at the cost of $72 billion) to pump water from the Yellow river to Northern China where a quarter of a million residents are facing problems with drinking water.
In June of 1996 Scientific American reported that China was considering using nuclear bombs to build a 15 km tunnel to divert water into the Gobi desert from the Brahmaputra River, which skirts China's southern border before dipping into India and Bangladesh. If they did this, what do you suppose India would do?
"Peaceful" Nuclear Explosions
A Chinese declaration of war?
China is building a huge network to divert water to the north.