Are the glaciers responding primarily to climate changes of the last 30 years, or to
the post Little Ice Age conditions?
A change in solar activity may also, for example, have contributed to
the post Little Ice Age rise in global temperatures in the first half of the 20th Century.
Not exact matches
As alluded to in our
post, one important issue is the possibility that changes in El Nino may have significantly offset opposite temperature variations in the extratropics, moderating the influence of the extratropical «
Little Ice Age» and «Medieval Warm Period» on hemispheric or global mean temperatures (e.g. Cobb et al (2003).
As alluded to in our
post, one important issue is the possibility that changes in El Nino may have significantly offset opposite temperature variations in the extratropics, moderating the influence of the extratropical «
Little Ice Age» and «Medieval Warm Period» on hemispheric or global mean temperatures (e.g. Cobb et al (2003).
Titus is commenting, and presumably reading, here since years and must have seen hundreds of blog
posts, commentaries and links elaborating on the «
little ice age» and that contemporary temperature rise has nothing to do with some «recovery» from the
little ice age.
We present here evidence from fire and tree - ring chronologies that the
post - «
Little Ice Age» climate change has profoundly decreased the frequency of fires in the northwestern Québec boreal forest.
As we did in the previous two
posts, we will examine each proxy and reject any that have an average time step greater than 130 years or if it does not cover at least part of the
Little Ice Age (LIA) and the Holocene Climatic Optimum (HCO).
As noted in a previous
post this week, right after the IPCC famously declared that the 1990s were likely the warmest decade of the past millennium, they stated: «Evidence does not support the existence of globally synchronous periods of cooling or warming associated with the «
Little Ice Age» and «Medieval Warm Period»» (Third Assessment Report, Chap.
Guest
Post «The Continuing Recovery From The
Little Ice Age».
The models heavily relied upon by the Intergovernmental Panel on Climate Change (IPCC) had not projected this multidecadal stasis in «global warming»; nor (until trained ex
post facto) the fall in TS from 1940 - 1975; nor 50 years» cooling in Antarctica (Doran et al., 2002) and the Arctic (Soon, 2005); nor the absence of ocean warming since 2003 (Lyman et al., 2006; Gouretski & Koltermann, 2007); nor the onset, duration, or intensity of the Madden - Julian intraseasonal oscillation, the Quasi-Biennial Oscillation in the tropical stratosphere, El Nino / La Nina oscillations, the Atlantic Multidecadal Oscillation, or the Pacific Decadal Oscillation that has recently transited from its warming to its cooling phase (oceanic oscillations which, on their own, may account for all of the observed warmings and coolings over the past half - century: Tsoniset al., 2007); nor the magnitude nor duration of multi-century events such as the Mediaeval Warm Period or the
Little Ice Age; nor the cessation since 2000 of the previously - observed growth in atmospheric methane concentration (IPCC, 2007); nor the active 2004 hurricane season; nor the inactive subsequent seasons; nor the UK flooding of 2007 (the Met Office had forecast a summer of prolonged droughts only six weeks previously); nor the solar Grand Maximum of the past 70 years, during which the Sun was more active, for longer, than at almost any similar period in the past 11,400 years (Hathaway, 2004; Solankiet al., 2005); nor the consequent surface «global warming» on Mars, Jupiter, Neptune's largest moon, and even distant Pluto; nor the eerily - continuing 2006 solar minimum; nor the consequent, precipitate decline of ~ 0.8 °C in TS from January 2007 to May 2008 that has canceled out almost all of the observed warming of the 20th century.