A broader conversation
[T]he blogosphere, with its diversity of venues and perspectives, is fostering a much broader conversation that has the potential to send climate science and its applications on a more useful track.
– Judith Curry
LL demonstrates that the 20th century’s global warming was predominantly a natural 100-year fluctuation. The leftovers are caused by UHI, the warming effect by increasing station elevation, changes to the screens and their environments in the 1970s, variations in the sun’s magnetic field that could influence the amount of clouds, warming caused by increasing anthropogenic CO2, and further unknown effects.
– Guest Post by Lüdecke, Link, and Ewert