Berkeley Earth claims that UHI has no effect on the temperature trends. This is in direct opposition to other studies, satellite data, radiosonde data, and common sense.
Dr. Roy Spencer has demonstrated that UHI has a huge effect.
http://www.drroyspencer.com/2010/03/global-urban-heat-island-effect-study-an-update/
Both sets of satellite data indicate that BEST surface temperatures are warming much faster than the air over the land.
www.woodfortrees.org/data/best/from:1979/plot/rss-land/plot/uah-land
Radiosonde data shows the same thing. Reported land temperatures are rising much faster than the atmosphere.
Global warming theory requires that the atmosphere warm faster than the surface. Obviously what Berkeley Earth is seeing is not due to global warming.
Everybody understands that suburban sprawl, snow removal, pavement, brick, dark roofs, huge amounts of fuel being burned, etc. causes temperatures to rise. It defies explanation how scientists could accept a finding that UHI is not affecting the temperature record.