Lake Superior has increased water temperatures and an earlier onset of summer stratification by about two weeks in just the past 30 years. Within another 30 years Lake Superior may be mostly ice-free in a typical winter.

Lake Erie water levels, already below average, could drop 4-5 feet by the end of this century, significantly altering shoreline habitat.

Global Warming and the Great Lakes – National Wildlife Federation

Gavin has very little data in Antarctica, but that didn’t stop him from turning a large region of -0.5 degree anomaly into a + 6 anomaly, and reporting to a precision of 0.01 degrees.

Similar story in Africa. Gavin has no coverage over most of the continent, and simply makes temperatures up and reports them to 0.01 degrees. RSS showed Africa below normal temperature in August.

Yesterday, Gavin told the Huffington Post that August was the hottest on record globally. He seems to have changed his mind since then, because today his map shows August was cooler than 2011 by 0.02 degrees.

RSS shows that August was seventh coolest and below average since 1997. So how did Gavin create his since reversed scientific flustercluck?

There were three stations in Antarctica on the right side of the 250 km map below which he marked as very hot. Those three stations averaged about -20C. This map has 250km extrapolation, and gives a feel for where the stations are located, and where there is no data.

He extrapolated those three -20C Antarctic stations across a huge area of below normal  temperatures on both the lower right and lower left side of the map, and massively skewed his global average anomaly using a large area of fake +6C anomaly, which he declared hot at…