There's a strong political bias here, but the data is compelling: https://realclimatescience.com/ https://realclimatescience.com/ he compares a lot of raw data

There's a strong political bias here, but the data is compelling: https://realclimatescience.com/ https://realclimatescience.com/ he compares a lot of raw data to "adjusted" data. He claims that the reported temperatures are fraudulent: https://realclimatescience.com/understanding-noaa-us-temperature-fraud/ https://realclimatescience.com/understanding-noaa-us-tempera... I'm not an expert, but what I see there is pretty compelling, I've never really found a good refutation anywhere.