Ice core CO2 data is also in line withe measurements taken throughout the world...
The scientists are not making this up... The CO2 increase is anthropogenic- no real debate there- we expect increasing CO2 to raise temperatures, We see temperatures going up- I do not understand why this is a political issue.
If people want to debate what action to take- fine- but it is insanity to say it isnt real and will not lead to serious issues in the future.