Positive feedback and exponential climate change, a widely ignored process.

For the Arctic, the global warming which has already occurred of 0.8 degrees Celsius has already stepped over the line, Schellnhuber said. If Greenland's ice cap ice melts completely, water levels will rise by seven meters (23 feet).

It has become necessary for all scientists commenting on the exponentially increasing GHG climate disaster to explain the nature of this phenomenon.  They need to climb down from their lofty theoretical world and go back to basics.  To science and math that they learned in grade school.  

Here's a news flash:  Politicians and the general public and even some of your colleagues do not understand the basic concept of positive feedback and exponential change.  Do not take this understanding for granted.  People like Obama and his top advisors who are well educated enough to have heard of this concept still don't apply it to climate change.

Scientists need to explain how positive feedback works.  How when ice melts it decreases the solar energy reflected and causes further warming, that in turn causes more melting.  That's positive feedback.  

When the arctic ocean warms that melts sea floor methane hydrate ice and permafrost on the tundra, the release of that methane (23 times the GHG effect of CO2) causes more solar energy to be trapped by the atmosphere, which cause more ice melt and more methane release.

Another more violent feedback mechanism is about to occur, firestorms.  Maybe that will be the wakeup call?  The western US fires are increasing in severity without much notice from the scientific community.

A firestorm is a conflagration which attains such intensity that it creates and sustains its own wind system. It is most commonly a natural phenomenon, created during some of the largest bushfires, forest fires, and wildfires. The Great Peshtigo Fire and the Ash Wednesday fires are two examples of a firestorm. Firestorms can also be deliberate effects of targeted explosives such as occurred as a result of the aerial bombings of Dresden, Hamburg, Tokyo and the atomic bombing of Hiroshima during World War II.

  This is another positive feedback mechanism ignored by the scientific community and the media.  Notice how the Wiki entry has a challenge at the top of the page?  A sign that climate disaster deniers have used preemption around this issue?  Are they getting ready to deny the first big western firestorm is a sign of exponential climate change?