Read about it here:
And leave a comment!
Copy it to
Anthony Watts has legitimate concerns about the surface network and the adjustments which have been applied to the data, particularly in Africa and South America, where population change is not well measured and station history patchy.
Scientific evidence shows climates have always changed, sometimes much faster and by more than it is changing now. A 1 degree Kelvin change in 100 years is around 0.3% of Earth’s surface temperature. A change in cloud cover of less than 1% could cause that 1 Kelvin change, and cloud data is poor and difficult to collect. As a result there is no strong evidence that the late C20th warming was mostly human caused, if there was, there would be no ongoing need for further research or debate.
Considering the amount of taxpayer funds at stake, the energy question, and economic issues, an open public debate is essential, and all viewpoints should be heard and rationally considered.
Anthony Watts allows people from all sides to discuss the issues with lighter control than most, more partisan websites. He is doing a good job supporting freedom of speech and openness of debate. PBS is following his lead. Well done PBS.