Sentences with phrase «arctic ice extent»

The arctic temperatures and arctic ice extent varies in a very predictable 60 - 70 year cycle that relates to ocean cycles which are likely driven by solar changes.

In short, 2008's summer arctic ice extent observation is not a wheel off the GW bandwagon — it is one more nail in the coffin of denialism.

That was a major motivation to predict a significant positive shift in arctic ice extent for this September.

Furthermore you use that interpretation to push the claim that temperatures for most of the holocene were warming than now which can hardly be supported by evidence of say arctic ice extent, glacial retreat levels etc, never mind other proxies.

It's easy to get daily up - to - date data on arctic ice extent from JAXA, and on arctic ice area from cryosphere today.

For other indicators — glacial retreat, sea level, arctic ice extent, etc. — the data is equally noisy, and it is difficult having a sensible discussion without the inevitable cherry - picking on both sides of the argument.

By the way: the arctic ice extent in February 2011 was not a record low: in February 2005 the frozen surface was the same as in February 2011 (14.36 square km).

However, the AR4 gives even more prominence to arctic ice extent, and summarizes: «Satellite data indicate a continuation of the 2.7 ± 0.6 % per decade decline in annual mean arctic sea ice extent since 1978.

My sense is that before satellites, we got some measurements of arctic ice extent from fixed observation stations and ship reports, but these were spotty and unreliable.