Interesting theory on climate change

[Mully]

I agree with the above sentiments that the earth has been heating and cooling long before 2 strokes were invented, and it's pretty presumptious to think we (mankind) are the sole cause.

If NZ were serious about tackling "climate change" (I'm looking at you, Green Party) they'd be debating nuclear power seriously. I'm not saying nuclear is the answer to all the issues, but in a sensible country, they'd at least be having the discussion.

Personally, I don't like pollution more for the asthetic effects rather than any genuine concern for the climate. I make sure my vehicles are tuned (the try to keep the air clean) and I recycle (mainly cos it saves me money). Riding through a forest is more enjoyable than riding through a clearfelled wasteland (provided the damn trees don't drop shit on the road, at which point, bowl the fuckers).

[Jantar]

True but isnt global warming about making an ice age? the ice melts at the polar caps and sends cold water out into the sea making everything colder? then the sun rays cant get in to heat the earth etc etc etc?

That theory was put forward about 12 years ago, it has since been shown to be wrong. One of the reasons is that most of the sea ice in the northern polar cap isn't fresh water in the first place, its salt water. I will try and find a more recent paper on the subject.

One of the issues with popular science is that when a hypothesis is put forward, the media will jump on it as fact, put forward the worst case scenario, publish it as though it is gospel, then refer back to their own and other media reports for the next twenty years. When the hypothesis is shown to be wrong, scientific journels hardly ever publish negative results and the media just don't get to hear about it. So the negative result seldom gets made public. This is a term known in science as publication bias.

[Delphinus]

wasn't very warm this morning...

You cant use personally perceived once off information like that to decide if the climate is infact changing...

Its not just about everything getting warmer... But changes such as more extremes... Hurricane Katrina more common, tornado's etc

Sure you cant say the above are DEFINITELY the result of climate change... but you cant say they have nothing to do with it.. So is it worth considering it may be a possibility.. and really looking at what can be done.

Big things can be changed... 1 person at a time... Just like our plans to have more people on bikes... 1 person at a time...

[NighthawkNZ:Me]

You cant use personally perceived once off information like that to decide if the climate is infact changing..

i know that... the point is that the earth has gone through climate cycles in the past, and it will go through more in the future whether humans are there and involved or not... humans in general have actually done very little to make any kind of climate shift... the natural world has done more... like i said valcanos all the modern volcano eruptions have put up more shyte into the atmosphere than the human race in the last 30,000 years.

Krakatoa, Mt Saint Helens, Ruapehu, Kilauea, http://www.geo.mtu.edu/volcanoes/world.html. (more active volcanos than you think) Then you also have Rotorua and other active areas throughout the world. All this combined has done more damage to the ozone and atmosphere than humans have ever done.

The other thing is the tactonic plates are still shifting, and they will continue to shift and drift we ain't ever going to stop them from moving, this does and will continue have a major play on climate. The planet itself is still evolving and us along with it, we just have to adapt to the change

[The Pastor]

I know that nothing in this world is stationary, everything moves, your house, the land the sea montains cliffs beaches.

So the weather is moving too, big deal.

[Jantar]

That theory was put forward about 12 years ago, it has since been shown to be wrong. One of the reasons is that most of the sea ice in the northern polar cap isn't fresh water in the first place, its salt water. I will try and find a more recent paper on the subject.
.

I still haven't found the original research, but here is a link describing some of the myth. http://environment.newscientist.com/...change/dn11838

[Jantar]

You cant use personally perceived once off information like that to decide if the climate is infact changing...

Its not just about everything getting warmer... But changes such as more extremes... Hurricane Katrina more common, tornado's etc

Sure you cant say the above are DEFINITELY the result of climate change... but you cant say they have nothing to do with it.. ...

Actually, we CAN safely say that the more extreme events have nothing to do with climate change.

If the idea that increased CO2 causes the earths temperature to rise, then beacause of Hadley Cell action, these increases will be noticed in polar regions first. The AGW models also all predict that warming will take place in polar regions first. The effect of this would be to reduce the temperature gradient across the planet. The polar regions are not showing any increase in average temperature, it is only in large urban areas that average temperatures are rising.

Next, extreme weather events are caused by an increased temperature gradient, not a decreased one. eg, A hurricane begins by a hot moist column of air rising rapidly into the troposphere, and causing a low pressure area. As the WATER VAPOUR rises it begins to rotate, and cooler air from a higher pressure area sliding in to refill the low pressure takes on this rotation as well. Without a temperaure gradient a hurricane cannot form.

Thus extreme weather events are an indication of a cooling planet, not a warming one.