What's new
US Message Board - Political Discussion Forum

This is a sample guest message. Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!

new research shows the planet was warmer during Medieval times

Status
Not open for further replies.

tecoyah

Member
Joined
Aug 24, 2017
Messages
56
Reaction score
6
Points
6
The rising temperatures seem less important than the rate at which it is happening and the coincidental ties to our industrial age. The correlation is quite disturbing and the possible future effects disheartening. Even if humans stopped their contribution right now (which is impossible) the current atmospheric composition would not truly be felt completely for a hundred years.
Quite simply put, it does not even matter at this point because if I am correct there is nothing we can even do and if you are there is nothing to worry about.

Just crack open a beer and watch an eclipse.
 

Old Rocks

Diamond Member
Joined
Oct 31, 2008
Messages
60,354
Reaction score
7,964
Points
1,840
Location
Portland, Ore.
Medieval Warm Period, Little Ice Age and 20th century temperature variability from Chesapeake Bay
. Author links open the author workspace.T.MCroninOpens the author workspacea. Numbers and letters correspond to the affiliation list. Click to expose these in author workspaceOpens the author workspace. Author links open the author workspace.G.SDwyerb. Numbers and letters correspond to the affiliation list. Click to expose these in author workspace. Author links open the author workspace.TKamiyac. Numbers and letters correspond to the affiliation list. Click to expose these in author workspace. Author links open the author workspace.SSchwedea. Numbers and letters correspond to the affiliation list. Click to expose these in author workspace. Author links open the author workspace.D.AWillarda. Numbers and letters correspond to the affiliation list. Click to expose these in author workspace
RedirectingGet rights and content

Abstract
We present paleoclimate evidence for rapid (<100 years) shifts of ∼2–4 °C in Chesapeake Bay (CB) temperature ∼2100, 1600, 950, 650, 400 and 150 years before present (years BP) reconstructed from magnesium/calcium (Mg/Ca) paleothermometry. These include large temperature excursions during the Little Ice Age (∼1400–1900 AD) and the Medieval Warm Period (∼800–1300 AD) possibly related to changes in the strength of North Atlantic thermohaline circulation (THC). Evidence is presented for a long period of sustained regional and North Atlantic-wide warmth with low-amplitude temperature variability between ∼450 and 1000 AD. In addition to centennial-scale temperature shifts, the existence of numerous temperature maxima between 2200 and 250 years BP (average ∼70 years) suggests that multi-decadal processes typical of the North Atlantic Oscillation (NAO) are an inherent feature of late Holocene climate. However, late 19th and 20th century temperature extremes in Chesapeake Bay associated with NAO climate variability exceeded those of the prior 2000 years, including the interval 450–1000 AD, by 2–3 °C, suggesting anomalous recent behavior of the climate system.

Medieval Warm Period, Little Ice Age and 20th century temperature variability from Chesapeake Bay - ScienceDirect

Not warmer at Chesapeake Bay.
 

Old Rocks

Diamond Member
Joined
Oct 31, 2008
Messages
60,354
Reaction score
7,964
Points
1,840
Location
Portland, Ore.
Abrupt tropical climate change: Past and present
  1. Lonnie G. Thompson * , , ,
  2. Ellen Mosley-Thompson * , § ,
  3. Henry Brecher *,
  4. Mary Davis *,
  5. Blanca León ,
  6. Don Les ,
  7. Ping-Nan Lin *,
  8. Tracy Mashiotta *, and
  9. Keith Mountain **
Author Affiliations

  1. Contributed by Lonnie G. Thompson, May 12, 2006
  1. Abstract
  2. Full Text
  3. Authors & Info
  4. Figures
  5. SI
  6. Metrics
  7. Related Content
  8. PDF
  9. PDF + SI

Abstract
Three lines of evidence for abrupt tropical climate change, both past and present, are presented. First, annually and decadally averaged δ18O and net mass-balance histories for the last 400 and 2,000 yr, respectively, demonstrate that the current warming at high elevations in the mid- to low latitudes is unprecedented for at least the last 2 millennia. Second, the continuing retreat of most mid- to low-latitude glaciers, many having persisted for thousands of years, signals a recent and abrupt change in the Earth’s climate system. Finally, rooted, soft-bodied wetland plants, now exposed along the margins as the Quelccaya ice cap (Peru) retreats, have been radiocarbon dated and, when coupled with other widespread proxy evidence, provide strong evidence for an abrupt mid-Holocene climate event that marked the transition from early Holocene (pre-5,000-yr-B.P.) conditions to cooler, late Holocene (post-5,000-yr-B.P.) conditions. This abrupt event, ≈5,200 yr ago, was widespread and spatially coherent through much of the tropics and was coincident with structural changes in several civilizations. These three lines of evidence argue that the present warming and associated glacier retreat are unprecedented in some areas for at least 5,200 yr. The ongoing global-scale, rapid retreat of mountain glaciers is not only contributing to global sea-level rise but also threatening freshwater supplies in many of the world’s most populous regions.

Abrupt tropical climate change: Past and present

This is an article published by the National Academy of Science of the United States of America. Full article is available for free.
 

skookerasbil

Platinum Member
Joined
Aug 6, 2009
Messages
35,840
Reaction score
4,418
Points
1,140
Location
Not the middle of nowhere
nobody cares either way s0ns!!!:2up::eusa_dance::eusa_dance:

Now......maybe if the alarmists can come up with a Plan B, they can actually make their case and people will care. But this has been 25 years of fail.........
 

skookerasbil

Platinum Member
Joined
Aug 6, 2009
Messages
35,840
Reaction score
4,418
Points
1,140
Location
Not the middle of nowhere
Oh.....and it is pretty fucking funny.............

When I post up about how Long Island is exceedingly cool in the summer for some years now, the k00ks point to averages across far wider area's and dismiss any "anomalies"..

But when science is presented that is based upon data across wide area averages and it doesn't conform with the established narrative, they turn around and point to a specific area.:rofl::rofl::rofl::rofl::rofl::rofl::rofl:


ghey


The world you people live in is 100% fake.........but give you credit for somehow actually being able to navigate in it. You either work in a cubicle or out in the middle of nowhere.
 

flacaltenn

Diamond Member
Staff member
Senior USMB Moderator
Moderator
Gold Supporting Member
Joined
Jun 9, 2011
Messages
62,180
Reaction score
17,258
Points
2,180
Location
Hillbilly Hollywood, Tenn

westwall

Diamond Member
Gold Supporting Member
Joined
Apr 21, 2010
Messages
72,163
Reaction score
27,374
Points
2,250
Location
Nevada
The rising temperatures seem less important than the rate at which it is happening and the coincidental ties to our industrial age. The correlation is quite disturbing and the possible future effects disheartening. Even if humans stopped their contribution right now (which is impossible) the current atmospheric composition would not truly be felt completely for a hundred years.
Quite simply put, it does not even matter at this point because if I am correct there is nothing we can even do and if you are there is nothing to worry about.

Just crack open a beer and watch an eclipse.







Why? The MWP was warmer than the present day, and by quite a lot. Every day you experience a 25 degree swing in temps. Do you suddenly burst into flame? Your hyperbole is unfounded based on actual scientific fact, and the well known historical record.
 
Status
Not open for further replies.

USMB Server Goals

Total amount
$350.00
Goal
$350.00

Most reactions - Past 7 days

Forum List

Top