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sm_jamieson sm_jamieson is offline
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Default BBC jakes GW demo?

On 8 Dec, 20:42, The Natural Philosopher wrote:
Roger Chapman wrote:
The Medway Handyman wrote:


Sorry to say not eveyone agrees with green bollox. *You appear to have
swallowed it whole.


As I have said before the green house effect and CO2 being a greenhouse
gas are both established fact. That you are prepared to go on denying
such facts makes you a laughing stock but doesn't alter the said facts.


Look, there is no disagreement.

1/. CO2 is a greenhouse gas
2/. CO2 levels are rising.
3/. The earth is warming.


Absolutely, well put. Its best to separate the facts from the
opinions.
Trouble is, some dispute point 3. When you have long term and short
term variability superimposed, you will always get short periods when
the trend appears to be reversing. That's why analysis using for
example a rolling ten year average are required. People also seem
unable to grasp the fact that an average global warming can produce
some localized cooling.
And it doesn't help when the press make dodgy connections with global
warming, like showing a polar bear on a small iceberg in an area where
the ice has melted like that for years. Or making out that the odd hot
day confirms global warming.
Its true that the average warming over the last few decades is rather
short term and it *could* be nothing to do with man, but its a balance
of probabilities.
Finally, whats this nonsense they always spout about putting an ice
cube in a glass and it melts and the water levels stays the same. Yes
I know.
Its the ice over the land melting and draining into the sea that is
the issue.
And sea level is not the same all over the globe - you have gravity,
and earth rotation, and the moon, etc.
Simon.