Global Warming

[Big Dave]

These give me cause for concern:

http://magma.nationalgeographic.com/ngm/0409/feature1/

http://edition.cnn.com/2006/US/03/26...ory/index.html

There are plenty more too.

[sugilite:Me]

My understanding is that man is responsible for about 5% of the fluro carbons released into the atmosphere. Volcanoes account for most of the rest. The earth has been going through theses cooling and heating cycles for years.
I also read there are two camps, some scientists allege we are actually entering a mini ice age. Of the two groups, the global warming crew have by far the largest funding. Like most things, somewhere in the middle lies balance.

[Jantar]

My understanding is that man is responsible for about 5% of the fluro carbons released into the atmosphere. Volcanoes account for most of the rest. The earth has been going through theses cooling and heating cycles for years.
I also read there are two camps, some scientists allege we are actually entering a mini ice age. Of the two groups, the global warming crew have by far the largest funding. Like most things, somewhere in the middle lies balance.

Flouro-carbons are almost all man made. These are the main cause of the Ozone hole (actually a thining of the ozone layer in high latitudes). This contributes to more sunburns and skin cancers, but has no effect on the Greenhouse effect.

It is the greenhouse gasses such as methane, water vapour and carbon-dioxide that are the supposely causing global warming. Man contributes around 5% of the additional carbon-dioxide each year, with volcanic action and natural combustion accounting for the other 95%. Although the GW (green) camp claim that man is also responsible for the increase in methane, the most recent research is showing that man is simply responsible for shifting the cause of methane, not adding to the total. As the the greenhouse gas that has the most effect, well that is water vapour, simple evaporation, and that is not man made.

Don't make the mistake of thinking that greenhouse asses are all bad. CO2 is also a natural fertilizer for he worlds forests, and without the greenhouse effect the earth's average temperature would be -45C.

[sugilite:Me]

Aha, thanks for the learn!

[Highlander]

... without the greenhouse effect the earth's average temperature would be -45C.

That's about the average at your place isn't it?

[Jantar]

That's about the average at your place isn't it?

It sure feels like it at times. We've used 2 months worth of firewood in the last 3 weeks.

[Highlander]

So much for Global warming then huh.

I'm doing my bit to help, Air conditioning on and the Window open.

[zadok]

How do we KNOW it's global warming, and not just part of the planets natural cycle????

That's right. Our little bit of time on planet earth is miniscule. Things have always been in flux.
An interesting book ot read (fiction) that touches on this and makes you think, is 'State of Fear' by Michael Crichton.
Makes for a good read.

[Highlander]

"To all things there is a season"

[Bartman10]

http://www.kiwibiker.co.nz/forums/sh...ad.php?t=21821

[Grahameeboy]

Craptain Planet, LOLZ The kid that got the Heart Ring got ripped off...ool

I think we have to be cautious about all this whohar about claims of global warming being specific to now.

All those bloody volcanic eruptions millions of years ago must surely be more damaging that what we have done.....I mean the speed of this disruption was faster compared to what we have done.

Even the ozone hole being caused by us is debatable. I read an article years ago that said that some English geezer with small equipment discovered it when Nasa could not so how do we actually know whether it has always been there or not.

But as others have said, global warming is not a new thing and we just do not know for sure.....but one thing is that we are custodians and we should still be nice to our planet as it is our home and homes need to be keep tidy.

[Swoop]

bring it on ,i want 20 deg winters and 40 deg summers

Could always move to Queensland....

[slowpoke]

I've been unsuccessfully racking my brain to try and remember where I read it but apparently "Global Warming' would actually have a net positive result for most of the worlds countries...but I'm guessing that ain't much comfort if you live on a South Pacific atoll....

[The_Dover]

...but I'm guessing that ain't much comfort if you live on a South Pacific atoll....

At least it gives them an excuse to move to South Auckland.

[Jantar]

I've been unsuccessfully racking my brain to try and remember where I read it but apparently "Global Warming' would actually have a net positive result for most of the worlds countries...but I'm guessing that ain't much comfort if you live on a South Pacific atoll....

It was in the draft of the IPCC's 3rd TAR, but removed from the publicly released version. It was further published in Bjorn Lomberg's book "The Sceptical Environmentalist".