Actually, it's you that doesn't know much about science, and yes, "climate change" as proposed by the IPCC is mostly bullshit science.
What, specifically do I not understand:
1. CO2 is a known greenhouse gas (known since 1850)
2. We know the increase in atmospheric CO2 right now is due largely to human activity (12-C/13-C isotope values)
3. Natural forcings are insufficient to explain the increased warming but when you include human forcings (eg greenhouse gas emissions, land use changes, etc.) the data makes sense.
Which part am I missing?