The Heartland Institute was created by Big Tobacco to spread misinformation that claimed cigarettes were not harmful. They switched over to climate propaganda after that work dried up. They are not to be taken seriously.
The reason people have doubts with psuedoscience is because of what we have been through in the last 3 years. A very detailed study on weather monitoring from 2022 presents in exhausting detail how temperature sensors over the last decade all over the U.S. have been moved to warmer areas, or replaced, to present warmer temperatures. Access it here if you would like 2022: Corrupted Climate Stations. One of the examples frequently given from this study is how they have moved many of the sensors out of the shade (the original NOAA standard) out onto airport runways in large cities.
Approximately 96% of U.S. temperature stations used to measure climate change fail to meet the "acceptable" and uncorrupted placement standards set by the National Oceanic and Atmospheric Administration (NOAA).
The research, conducted by The Heartland Institute, utilized satellite and in-person surveys to assess NOAA weather stations contributing to the official land temperature data in the United States. The study reveals that an alarming 96% of these stations are affected by localized urbanization effects, leading to a heat-bias due to their proximity to asphalt, machinery, and other heat-producing objects.
This violates NOAA's own published standards and raises concerns about the accuracy of long-term climate warming trends in the country.