First: the trend pattern showing CO2 levels and climate temperature is very very clear and well documented over something like 300,000 years.
Right now CO2 levels are so high that we have never seen anything close to these levels EVER. Comparing the chart to the start of human industrial activity over time makes it clear that something we are doing is causeing the rise in CO2 (burning carbon)
Second: stop looking at the temperature outside. This means nothing. The average temperature of the earth may only change by 2-3 degrees. This change still would have catastrophic effects on the planet.
Local temperatures may actually drop in some areas and rise in others. I am so sick of idiots in the media confirming/denying global warming everytime we hit a hot/cold spell. Chances are the temperature change will occur and global catastrophy will be inevitable BEFORE you are able to feel the change in your local climate.
Third: we really dont know what will happen during and after global warming. There are many interesting and conflicting theories out there. What is fairly certain is that water levels will rise. Some theories pretty massive hurricane like storms, others predict a new ice age would quickly follow.
Fourth: At the time of the ice age the sea level was 75 or more feet lower than now. Evidence of cave dwelling humans liveing in locations well below sea level is well documented. In the 1700's Europe was in a mini ice age. Paintings during the time routinely show people skating on rivers that never freeze today. The Neopoleonic wars and Revolutionary war in the US were fought during this period and the winters were the cause of tremendous loss of life.
In conclusion: Our planet is undergoing constant climate change. Ice age/warm age comes and goes every 10-50 thousand years. These minor temperature changes cause major climatic change. The best fit data shows CO2 levels are a excellent preindicator of temperature change. We are dumping CO2 into the atmosphere at unprecidented levels and reducing the planets ability to metabolise it at a period of time when the global temperature is rising at unprecidented rates.
This is a formula for disaster.
Only people working for Big oil/coal deny what is happening.
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