/sci/ - Science & Math

>>8555672
Is global warming caused by man? YES

>>8546418
>Just because CO2 levels are high and it is a green house gas you can't related it directly to GW.
Of course you can relate it directly to GW. You can directly measure incoming infrared radiation and determine what chemical it's radiating from via spectroscopy. So we know the radiative forcings of all GHGs from measuring them directly.

>Water vapour is a greenhouse gas too.
Yes, and warming from the greenhouse effect leads to higher saturation of water vapor in the atmosphere, forming a positive feedback loop. This does not support your argument.

>The sun itself has fluctuations in its output energy etc.
The sun's output has not changed much and can't explain the observed warming.

>During the Jurassic period the average temperature was much higher than today's
AGW does not say the temperature was never higher, it says that the *rate* of warming is unprecedented and the reason for that warming is unprecedented. Not to mention that humans are used to today's environment and not the Jurassic environment.

All of the arguments you are making point to a complete lack of basic knowledge of the topic you are trying to discuss. Educate yourself instead of pretending to know what you're talking about.