Urban Heat Island effect. SAT data is polluted and can t be trusted. Truly global data is only available from satellites, and they say no warming in the troposphere. The sensors on these satellites are sensitive to temperatures in the upper troposphere, some 10-12 km above the earth. Probably, although not absolutely positively certain.
Science can t ever prove it, only convict it beyond reasonable doubt.
Most scientists think we have. CO2 and CH4 levels are far outside the normal levels that have existed over the past 500,000 years. We re in for a hotter climate in most areas, with benefits and drawbacks for everyone. At the very least, expect change. At worst, Kentucky may have beachfront property soon.