High July temperature anomalies in the Southern Hemishere

July temperature anomalies in the 

Southern Hemisphere

Sam Carana, via Facebook

The July temperature anomaly was particularly high on land on the Southern Hemisphere (1.53°C or 2.75°F, compared to 1901-2000). The image shows a linear trend over the period 2012-2017.

The fall in thickness of the sea ice indicates that the buffer has gone that until now has consumed heat entering the Arctic Ocean during the melting season. In the absence of this buffer, where can all this extra heat go?

The danger is that much of the extra heat will instead reach sediments at the seafloor of the Arctic Ocean that contain huge amounts of methane in currently still frozen hydrates.

Higher temperatures could destabilize methane hydrates, resulting in huge methane eruptions.

A polynomial trend, based on NOAA July 1983 to January 2017 global monthly mean methane data, points at twice as much methane by 2034. Stronger methane releases from the seafloor could make such a doubling occur even earlier. Over the next decade, methane will cause more warming than CO₂ ─ twice as much methane will cause more than twice as much warming.

From the post 'Temperature Rise', at: 

http://arctic-news.blogspot.com/2017/…/temperature-rise.html